Chlorine
A greenish-yellow, diatomic gas that is a member of the halogen family of elements. It has the atomic symbol Cl, atomic number 17, and atomic weight 70.906. It is a powerful irritant that can cause fatal pulmonary edema. Chlorine is used in manufacturing, as a reagent in synthetic chemistry, for water purification, and in the production of chlorinated lime, which is used in fabric bleaching.
Hydrochloric Acid
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Gases
The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)
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Porphyrins
A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin.
Solvents
Hydroxymethylbilane Synthase
An enzyme that catalyzes the tetrapolymerization of the monopyrrole PORPHOBILINOGEN into the hydroxymethylbilane preuroporphyrinogen (UROPORPHYRINOGENS) in several discrete steps. It is the third enzyme in the 8-enzyme biosynthetic pathway of HEME. In humans, deficiency in this enzyme encoded by HMBS (or PBGD) gene results in a form of neurological porphyria (PORPHYRIA, ACUTE INTERMITTENT). This enzyme was formerly listed as EC 4.3.1.8
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Dose-specific production of chlorinated quinone and semiquinone adducts in rodent livers following administration of pentachlorophenol. (1/17)
Production of chlorinated quinoid metabolites was investigated in the livers of Sprague-Dawley rats and B6C3F1 mice following single oral administration of pentachlorophenol (PCP) (0-40 mg/kg body weight) and in male Fischer 344 rats, following chronic ingestion of PCP at 1,000 ppm in the diet for 6 months (equivalent to 60 mg PCP/kg body weight/day). Analyses of the rates of adduction in the livers of Sprague-Dawley rats and B6C3F1 mice suggested that the production of tetrachloro-1,2-benzosemiquinone (Cl4-1,2-SQ) adducts was proportionally greater at low doses of PCP (less than 4-10 mg/kg body weight) and was 40-fold greater in rats than in mice. Production of tetrachloro-1,4-benzoquinone (Cl4-1,4-BQ) adducts, on the other hand, was proportionally greater at high doses of PCP [greater than 60-230 mg/kg body weight] and was 2- to 11-fold greater in mice than in rats over the entire range of dosages. A mathematical model employed these data to predict the rates of daily adduct production and steady state levels of PCP-derived quinone and semiquinone adducts in rats and mice. To evaluate predictions of the model, levels of PCP-derived adducts at steady state were investigated in the livers of male Fischer 344 rats chronically ingesting 60 mg PCP/kg body weight/day. Levels of total Cl4-1,4-BQ-derived adducts in liver cytosolic proteins (Cp) (22.0 nmol/g) and in liver nuclear proteins (Np) (3.07 nmol/g) were comparable to those of model predictions (15.0 and 3.02 nmol/g for Cp and Np, respectively). Overall, these results suggest that species differences in the metabolism of PCP to semiquinones and quinones were, in part, responsible for the production of liver tumors in mice but not rats in chronic bioassays. (+info)Oxidative damage and direct adducts in calf thymus DNA induced by the pentachlorophenol metabolites, tetrachlorohydroquinone and tetrachloro-1,4-benzoquinone. (2/17)
DNA damage induced by quinoid metabolites of pentachlorophenol (PCP), i.e. tetrachloro-1,4-benzoquinone (Cl(4)BQ) and tetrachlorohydroquinone (Cl(4)HQ), was investigated in calf thymus DNA. The (32)P-post-labeling assay revealed four major and several minor adducts (3.5 adducts per 10(5) total nucleotides) that were produced in calf thymus DNA treated with Cl(4)BQ (5 mM). These DNA adducts were chemically stable even after conditions that induce thermal depurination and are unlikely to undergo depurination/depyrimidination to form apurinic/apyrimidinic (AP) sites. In addition, increases in 8-hydroxy-deoxyguanosine (8-HO-dG) (5 8-HO-dG per 10(5) nucleotides) and AP sites (0.5 AP sites per 10(5) nucleotides) were observed in Cl(4)BQ-modified calf thymus DNA. Further investigation indicated that in the presence of Cu(II) and NADPH, low concentrations of Cl(4)BQ (1 microM) induced a doubling of 8-HO-dG (10 8-HO-dG per 10(5) nucleotides) and dramatic increases in AP sites (20 AP sites per 10(5) nucleotides) and DNA single-strand breaks. The types of DNA damage induced by Cl(4)HQ plus Cu(II) were similar to those by Cl(4)BQ plus Cu(II) and NADPH, whereas catalase inhibited the formation of DNA damage. These data suggest that oxidative damage is causally involved in the formation of AP sites. Concentration-dependent increases in 8-HO-dG induced by Cl(4)HQ plus Cu(II) and Cl(4)BQ plus Cu(II) and NADPH were correlated with the formation of AP sites (r(2) = 0.977) with a ratio of 8-HO-dG to AP sites at 1:1.6. The AP site-cleavage assay confirmed that approximately 85% of the AP sites induced by Cl(4)HQ and Cu(II) were detected as 5'-cleaved AP sites. Since hydrogen peroxide alone causes similar DNA damage, these results suggest the involvement of Cu(II) and hydrogen peroxide in the induction of oxidative DNA damage by Cl(4)HQ/Cl(4)BQ. The data demonstrate that PCP quinone and hydroquinone induce direct and oxidative base modifications as well as the formation of 5'-cleaved AP sites in genomic DNA. These lesions may have important implications for PCP clastogenicity and carcinogenicity. (+info)Association of quinone-induced platelet anti-aggregation with cytotoxicity. (3/17)
Various anti-platelet drugs, including quinones, are being investigated as potential treatments for cardiovascular disease because of their ability to prevent excessive platelet aggregation. In the present investigation 3 naphthoquinones (2,3-dimethoxy-1,4-naphthoquinone [DMNQ], menadione, and 1,4-naphthoquinone [4-NQ]) were compared for their abilities to inhibit platelet aggregation, deplete glutathione (GSH) and protein thiols, and cause cytotoxicity. Platelet-rich plasma, isolated from Sprague-Dawley rats, was used for all experiments. The relative potency of the 3 quinones to inhibit platelet aggregation, deplete intracellular GSH and protein thiols, and cause cytotoxicity was 1,4-NQ > menadione >> DMNQ. Experiments using 2 thiol-modifying agents, dithiothreitol (DTT) and 1-chloro-2,4-dintrobenzene (CDNB), confirmed the key roles for GSH in quinone-induced platelet anti-aggregation and for protein thiols in quinone-induced cytotoxicity. Furthermore, the anti-aggregative effects of a group of 12 additional quinone derivatives were positively correlated with their ability to cause platelet cytotoxicity. Quinones that had a weak anti-aggregative effect did not induce cytotoxicity (measured as LDH leakage), whereas quinones that had a potent anti-aggregative effect resulted in significant LDH leakage (84-96%). In one instance, however, p-chloranil demonstrated a potent anti-aggregative effect, but did not induce significant LDH leakage. This can be explained by the inability of p-chloranil to deplete protein thiols, even though intracellular GSH levels decreased rapidly. These results suggest that quinones that deplete GSH in platelets demonstrate a marked anti-aggregative effect. If this anti-aggregative effect is subsequently followed by depletion of protein thiols, cytotoxicity results. (+info)Mechanistic appraisal of the charge-transfer complexes of promethazine with chloranil: a modelling approach. (4/17)
Various mechanisms are often used to explain the interaction between electron donors and acceptors. Commonly proposed mechanisms are those in which the acceptor interacts with the aromatic pi-systems in the donor molecule or the acceptor forms a weak interaction of the Lewis acid with Lewis base type. In this study, the above mechanisms were examined as well as other possible mechanisms. Promethazine was chosen as the model drug containing aromatic systems capable of pi-pi interaction as well as N-methyl group capable of forming a complex with the weak Lewis acid, p-chloranil. Our modelling studies revealed that the situation where the p-chloranil interacts with a protonated N-methyl group is the most significant mechanism of interaction, based on the calculated energies for the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO), the Tripos force field energy terms and also the stability of the complexes during molecular dynamics simulations. (+info)A previously unrecognized step in pentachlorophenol degradation in Sphingobium chlorophenolicum is catalyzed by tetrachlorobenzoquinone reductase (PcpD). (5/17)
The first step in the pentachlorophenol (PCP) degradation pathway in Sphingobium chlorophenolicum has been believed for more than a decade to be conversion of PCP to tetrachlorohydroquinone. We show here that PCP is actually converted to tetrachlorobenzoquinone, which is subsequently reduced to tetrachlorohydroquinone by PcpD, a protein that had previously been suggested to be a PCP hydroxylase reductase. pcpD is immediately downstream of pcpB, the gene encoding PCP hydroxylase (PCP monooxygenase). Expression of PcpD is induced in the presence of PCP. A mutant strain lacking functional PcpD has an impaired ability to remove PCP from the medium. In contrast, the mutant strain removes tetrachlorophenol from the medium at the same rate as does the wild-type strain. These data suggest that PcpD catalyzes a step necessary for degradation of PCP, but not for degradation of tetrachlorophenol. Based upon the known mechanisms of flavin monooxygenases such as PCP hydroxylase, hydroxylation of PCP should produce tetrachlorobenzoquinone, while hydroxylation of tetrachlorophenol should produce tetrachlorohydroquinone. Thus, we proposed and verified experimentally that PcpD is a tetrachlorobenzoquinone reductase that catalyzes the NADPH-dependent reduction of tetrachlorobenzoquinone to tetrachlorohydroquinone. (+info)Simultaneous spectrophotometric determination of p-benzoquinone and chloranil after microcrystalline naphthalene extraction by using genetic algorithm-based wavelength selection-partial least squares regression. (6/17)
Microcrystalline naphthalene extraction has been used for the preconcentration of p-benzoquinone and tetrachloro-p-benzoquinone (chloranil), after their reaction by aniline, and later simultaneous spectrophotometric analysis by genetic algorithm-partial least squares (GA-PLS) calibration. The chemical variables affecting the analytical performance of the methodology were studied and optimized. Under the optimum conditions i.e., [aniline] = 0.05 M and [naphthalene] = 2.2% (w/v), preconcentration of 25 ml of sample solution permitted the detection of 0.32 and 0.23 microg ml(-1) for p-benzoquinone and chloranil, respectively. The predictive abilities of partial least squares regression (PLS) and genetic algorithm-partial least squares regression (GA-PLS) were examined for simultaneous determination of two quinones. The GA-PLS shows superiority over other PLS methods due to the wavelength selection in PLS calibration using a genetic algorithm without loss of prediction capacity, provides useful information about the chemical system. (+info)Oxidative dimer produced from a 2,3,4-trihydroxybenzoic ester. (7/17)
The DPPH radical-scavenging abilities of the naturally occurring phenolic acid, 2,3,4-trihydroxybenzoic acid, and its methyl ester were evaluated. Both compounds in acetonitrile scavenged as many as four radicals compared to three or fewer radical consumption in acetone or ethanol. Only the ester showed relatively high ability in methanol. Oxidation with o-chloranil in acetonitrile resulted in methyl 2,3,4-trihydroxybenzoate giving a novel benzocoumarin-type dimer, its chemical structure being confirmed by spectroscopic evidence. The formation of this dimer might partly account for the higher radical-scavenging efficiency of the ester in acetonitrile or methanol. (+info)Flow-injection spectrophotometric determination of azithromycin in pharmaceutical formulations using p-chloranil in the presence of hydrogen peroxide. (8/17)
A flow-injection (FI) spectrophotometric procedure exploiting merging zones is proposed for the determination of azithromycin in pharmaceutical formulations. The method is based on the reaction of azithromycin with tetrachloro-p-benzoquinone (p-chloranil) accelerated by hydrogen peroxide and conducted in a methanol medium, producing a purple-red color compound (lambda(max) = 540 nm). The FI system and the experimental conditions were optimized using a multivariate method. Beer's law is obeyed in a concentration range of 50 - 1600 microg mL(-1) with an excellent correlation coefficient (r = 0.9998). The detection limit and the quantification limit were 6.6 and 22.1 microg mL(-1), respectively. No interference was observed from the common excipients, and the recoveries were within 98.6 to 100.4%. The procedure was applied to the determination of azithromycin in pharmaceuticals with a high sampling rate (65 samples h(-1)). The results obtained by the proposed method were in good agreement with those obtained by the comparative method at 95% confidence level. (+info)
Chloranil | Article about chloranil by The Free Dictionary
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Chloranilic acid
Chloranil "Chloranilic acid". Sigma-Aldrich. Mostafa, S. I. (1999). "Complexes of 2,5-Dihydroxy-1,4-Benzoquinone and ...
Hexachlorocyclohexa-2,5-dien-1-one
The hydrolysis of HCP gives chloranil. S. Gali, C. Miravitlles and M. Font-Altaba "Hexachlorocyclohexa-2,5-dienone" Acta ...
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone
Synthesis of DDQ involves cyanation of chloranil. Thiele and Günther first reported a 6-step preparation in 1906. The substance ...
Aniline
Hydrochloric acid and potassium chlorate give chloranil. Potassium permanganate in neutral solution oxidizes it to nitrobenzene ...
Mesitylene)molybdenum tricarbonyl
The Molybdenum complex is activated with an oxidant such as chloranil. The result of the charge transfer facilitates ring ...
1,4-Benzoquinone
Chloranil 1,4-C6Cl4O2 is another potent oxidant and dehydrogenation agent. Monochloro-p-benzoquinone is yet another but milder ...
Pigment violet 23
It is prepared by condensation of chloranil and 3-amino-N-ethylcarbazole. It has a centrosymmetric angular structure. For many ... Pigment violet 23 is prepared by condensation of an aniline with chloranil. Chamberlain, Terence "Dioxazine violet pigments" ...
Hidden states of matter
"Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA)". Physical Review B ... "Photoinduced phase transition in tetrathiafulvalene-p-chloranil observed in femtosecond reflection spectroscopy". Physical ...
James B. Conant
I. The Use of the Chloranil Electrode in Glacial Acetic Acid and the Strength of Certain Weak Bases". Journal of the American ...
2,2'-Dipyrromethene
The dipyrromethane core is then oxidized to dipyrromethene using a quinone oxidant such as DDQ or p-chloranil. Alternatively, ...
Quinone
Chloranil, a reagent in organic chemistry Lawsone, a dye present in the leaves of the henna plant Alizarin, a common red dye ... Strongly oxidizing quinones include chloranil and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (also known as DDQ). 9,10- ...
Mibolerone
In the case at hand, heating acetate (1) with chloranil gives the conjugated dienone (2), and reaction of that compound with ... Chloranil (tetrachloroquinone) is the forerunner of dichlorodicyanoquinone (DDQ), a reagent used extensively for introducing ...
Melengestrol
6-diene with chloranil (11). Acetylation under forcing conditions completes the synthesis of melengesterol acetate. ...
Medrogestone
... as well as chloranil in a single reaction; the 4,6-diene, (medrogesterone), is obtained directly from this step. Medrogestone ...
Heptacene
... organic oxidation with P-chloranil in toluene 2 hours reflux and 81% yield c] Bishydroxylation with N-Methylmorpholine N-oxide ...
Corrole
... followed by oxidation and ring closure with p-chloranil: Corrole has several important differences from porphyrin. The first is ...
BODIPY
... which is oxidized to dipyrromethene using a quinone oxidant such as DDQ or p-chloranil. Alternatively, dipyrromethenes are ...
Organovanadium chemistry
... chloranil → VO(mes)3 VOCl3 + ZnPh2 → VOPhCl2 + "ZnPh(Cl)" Well-defined vanadium compounds do not appear as catalysts in any ...
Ponceau S
... charge-transfer complexes of Ponceau S with p-chloranil, chloranilic and picric acids". Research on Chemical Intermediates. 41 ...
List of fungicides
... fungicides carbendazim carboxin carpropamid carvone Cheshunt mixture chinomethionat chlobenthiazone chloraniformethan chloranil ...
Azulene
DMF Luche reduction to alcohol with sodium borohydride elimination reaction with Burgess reagent oxidation with p-chloranil ...
Chloranil
Like the parent benzoquinone, chloranil is a planar molecule that functions as a mild oxidant. Chloranil is produced by ... Chloranil is used to test for free secondary amines. This test is useful for checking for the presence of proline derivatives. ... Chloranil is a quinone with the molecular formula C6Cl4O2. Also known as tetrachloro-1,4-benzoquinone, it is a yellow solid. ... Chloranilic acid 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) Chloranil at Sigma-Aldrich J.-M. Lü, S. V. Rosokha, I. S. ...
Chloranil - Wikipedia
Like the parent benzoquinone, chloranil is a planar molecule that functions as a mild oxidant. Chloranil is produced by ... Chloranil is used to test for free secondary amines. This test is useful for checking for the presence of proline derivatives. ... Chloranil is a quinone with the molecular formula C6Cl4O2. Also known as tetrachloro-1,4-benzoquinone, it is a yellow solid. ... Chloranilic acid 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) Chloranil at Sigma-Aldrich J.-M. Lü, S. V. Rosokha, I. S. ...
Chloranil | 118-75-2
You can also browse global suppliers,vendor,prices,Price,manufacturers of Chloranil(118-75-2). At last,Chloranil(118-75-2) ... Visit ChemicalBook To find more Chloranil(118-75-2) information like chemical properties,Structure,melting point,boiling point, ... Chloranil Spectrum. Chloranil(118-75-2) MSChloranil(118-75-2) IR1Chloranil(118-75-2) IR2 ... Chloranil is sensitive to excessive light and heat. Chloranil is incompatible with strong oxidizing agents. Chloranil reacts ...
Sciencemadness Discussion Board - What exactl is ortho-chloranil? - Powered by XMB 1.9.11
Chloranil. Dont know what are you goung to use it for, but DDQ is a substitute in many processes. ... What exactl is ortho-chloranil?. I can already see the posts instructing me to google it so dont bother, I already have, and ... What Im hoping for here is a general discription of ortho-chloranil, and if possible, any information relating to its purchase ... This patent gives a continuous lab-scale process for making o-chloranil from tetrachlorocatechol via chlorination of catechol ...
Chloranil | Article about chloranil by The Free Dictionary
Find out information about chloranil. C6Cl4O2 Yellow leaflets melting at 290°C; soluble in organic solvents; made from phenol ... by treatment with potassium chloride and hydrochloric acid; used as... Explanation of chloranil ... chloranil. Also found in: Dictionary, Wikipedia.. Related to chloranil: chloranilic acid, DDQ chloranil. [klȯr′an·əl] (organic ... Chloranil , Article about chloranil by The Free Dictionary https://encyclopedia2.thefreedictionary.com/chloranil ...
NOPR: Charge-transfer transition energies of EDA complexes between <i style="mso-bidi-font-style:normal">o</i>-chloranil and a...
The ground state geometries of electron donor-acceptor (EDA) complexes between o-chloranil and a series of phenols have been ... Charge-transfer transition energies of EDA complexes between o-chloranil and a series of phenols: A correction with AMI results ... chloranil from the phenol moiety; the theoretical transition energies, after correction for salvation, have been found to agree ...
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We are Professional Manufacturer of Chloranil Application company, Factory & Exporters specialize in Chloranil Application wiht ... Chloranil Application - manufacturer, factory, supplier from China. (Total 1 Products for Chloranil Application) ... This Chloranil Application is incredible. And I really appreciated the fast response of the service. ... I really like the Chloranil Application . When I received this product, it was completely packaged and included with detailed ...
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Chloranil suppliers, Chloranil exporters, Chloranil importers. Get contact address of Chloranil manufacturing and supplying ... Manufacturer of Chloranil (2,3,5,6-Tetra Chloro-1,4-Benzo Quinone) (99%), BDSA (4,4-Diamino Diphenyl-2,2-Disulphonic Acid ... Exporter of Dyes Intermediates : Alpha Naphthol, Anthranilic Acid, Beta Naphthol Intermediates, Benzyl Chloride, Chloranil, H ... Dealing in Acrylamide, Aniline Oil, Carbazole, Chloranil, Diethyl Malonate. Epichlorohydrin, Ethyl Cyano Acetate, Ethyl 2- ...
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Use of Phosphated Alcanols as Dispersants, Emulsifiers, Hydrotropes, Wetting Agents and Compatability Agents in Agricultural...
Photoinduced neutral-to-ionic phase transition in tetrathiafulvalene-p- chloranil studied by time-resolved vibrational...
We studied the photoinduced neutral-to-ionic phase transition in tetrathiafulvalene-p-chloranil (TTF-CA) using time-resolved ... Fingerprint Dive into the research topics of Photoinduced neutral-to-ionic phase transition in tetrathiafulvalene-p- chloranil ... N2 - We studied the photoinduced neutral-to-ionic phase transition in tetrathiafulvalene-p-chloranil (TTF-CA) using time- ... AB - We studied the photoinduced neutral-to-ionic phase transition in tetrathiafulvalene-p-chloranil (TTF-CA) using time- ...
Aniline - Wikipedia
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Chloranilic acid - Wikipedia
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with p-chloranil to Engl., 33:12, 1246- give a benzene- 47 at 1246. containing macrocycle called "benziporphin."1994 Performed ... Following this, 100 mg of p-chloranil (4.0 10-4) was added, and the reaction mixture was refluxed for 20 minutes. The solution ... Examples of such useful oxidizing agents include dichloro-dicyanobenzoquinone ("DDQ"), o- and p-chloranil, O2 gas, iodine (I2) ... are selected from the group consisting of DDQ or p-chloranil in dichloromethane or toluene, or O2 gas bubbled through an ...
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2g of chloranil was stirred into a solution of 5g of sodium nitrite in 200ml of water. Gradually all the chloranil went into ... Chloranil can also be used to prepare nitranilic acid.. Chloranil according to ber, 20, 2027-2031 (1887) when treated with an ... chloranil is very frequently formed ; and as chloranil itself breaks up into chloropicrin by the action of aqua regia, this is ... Chloranil : A slurry of 5.0 grams of salicylic acid and 100 ml of concentrated hydrochloric acid was heated to 80ºC and 5.0 ...
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Acid5
- Chloranilic acid 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) Chloranil at Sigma-Aldrich J.-M. Lü, S. V. Rosokha, I. S. Neretin and J. K. Kochi, "Quinones as Electron Acceptors. (wikipedia.org)
- Crystallise p-chloranil from acetic acid, acetone, *benzene, EtOH or toluene, dry it in a vacuum over P2O5, or from acetic acid and drying over NaOH in a vacuum desiccator. (chemicalbook.com)
- When reacted with chlorine, aqua regia or potassium chlorate in the presence of hydrochloric acid, picric acid yields chloranil along with chloropicrin. (sciencemadness.org)
- If not p-DCB then nitration to activate one of the chlorines then remove with NaOH giving mainly 4-chloro-2,6-dinitrophenol, its known that picric acid and p-chlorophenol can be oxidised/chlorinated to chloranil so that probably has merit if p-DCB itself is unreactive. (sciencemadness.org)
- chloranil acid (CLA) (purity ≥ 98%) was obtained from Alfa Aesar and chloroform, ethanol, methanol and acetonitrile from Fisher were used without further purification. (scirp.org)
Vibrational spectroscopy1
- We studied the photoinduced neutral-to-ionic phase transition in tetrathiafulvalene-p-chloranil (TTF-CA) using time-resolved infrared (IR) vibrational spectroscopy with a broadband femtosecond IR laser pulse and a linear IR detector array. (elsevier.com)
Oxidation2
- Because of its great resistance to further oxidation, chloranil is formed as the final product of the chlorate-HCl oxidation of many aromatic compds. (sciencemadness.org)
- Oxidation of bilirubin with chloranil. (nationallizenzen.de)
Charge-transfer1
- Infrared spectra of acridine orange and its charge transfer complexes with acceptors such as chloranil, 2,3-dichloro-5,6-dicyano- p -benzoquinone, 7,7,8,8-tetracyano- p -quinodimethane and tetracyano- p -ethylene are reported. (niscair.res.in)
Phenol1
- Prepd (chloranil) from p- phenylenediamine or phenol by treating with KClO3 and HCl. (sciencemadness.org)
Isomer2
- A sample may contain significant amounts of the o-chloranil isomer as impurity. (chemicalbook.com)
- rile (TCTPN), a dinitrile derivative, is an isomer of chloranil. (sigmaaldrich.com)
Dichlone2
- For example, the inhibition of CES1 and CES2 by triclosan was totally unexpected, as was the inhibition of the RyRs by chloranil and dichlone. (thefreedictionary.com)
- Manufacturer of Dichlone, Chloranil. (needsinfo.com)
Amines3
- Chloranil is used to test for free secondary amines. (wikipedia.org)
- Secondary amines react with chloranil to give a brown/red/orange derivative, the colour depending on the amine. (wikipedia.org)
- A method for the detection of aromatic amines on the solid support by using chloranil has been developed. (elsevier.com)
Quinone2
- Chloranil is a quinone with the molecular formula C6Cl4O2. (wikipedia.org)
- Al-Hamidi, A. A. A., Shehu, R. A. and Duhaiman, A. S. Inhibition of camel lens z -crystallin/NADPH: quinone oxidoreductase activity by chloranil. (edu.sa)
Complexes1
- The ground state geometries of electron donor-acceptor (EDA) complexes between o -chloranil and a series of phenols have been optimised by AMI method, adopting a 'super molecule' model for each DA adduct. (niscair.res.in)
19791
- T. Christensen, "Qualitative test for monitoring coupling completeness in solid phase peptide synthesis using chloranil," Acta Chemica Scandinavica , vol. 33, pp. 763-776, 1979. (hindawi.com)
Secondary1
- The effect of several factors on the rate of ketone regeneration were investigated, among them were light intensity, solvent, initial concentrations of tosylhydrazone and chloranil and secondary reaction products. (concordia.ca)
Organic1
- doi:10.1002/14356007.a07_001.pub2 Derek R. Buckle "Chloranil" in Encyclopedia of Reagents for Organic Synthesis, 2001, John Wiley. (wikipedia.org)
Grade1
- we have Chloranil tech grade and pharma grade CAS No 118-75-2 Molecular Formula C6Cl4O2 Molecular Weight 245.88 Appearance Yellow powder or cr. (kitairu.net)
Light2
- Chloranil is sensitive to excessive light and heat. (chemicalbook.com)
- This study investigated the deprotection of ketones from tosylhydrazones by irradiating a solution of the tosylhydrazone with visible light, in the presence of chloranil. (concordia.ca)
Full1
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Product1
- Recently chloranil was employed as cyclising agent for the synthesis of dissymmetric TPDOs, however, the product was obtained indirectly through bisphenoxy or phenoxazine tricyclic intermediate [14, 15] instead of dianilide intermediate. (thefreedictionary.com)
Application3
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Sources1
- Five source profiles were extracted from the PMF model applied to the sediment samples including chloranil, combustion, polychlorinated biphenyl impurities, mixed urban sources and. (environmental-expert.com)