This base is converted with aniline and acetic acid into the spirit-soluble indulin or its base (as described above), which is made soluble with oil of vitriol, similarly as the indulin base from magenta refuse. (google.pl)
Antifebrin or acetanilide is obtained from acetic acid and aniline. (wikidoc.org)
Many amides can be reduced to amines by triacetoxyborohydride formed in situ from sodium borohydride and glacial acetic acid. (thevespiary.org)
In many cases trifluoroacetic acid gives better yields than acetic acid. (thevespiary.org)
Hydrochloride1
If there is no hydrochloride of aniline, or of the mixture of aniline and toluydin, and no free aniline or toluydin to be acted upon, then the process must be watched very carefully, and by all means be kept below 190°, else a large quantity of by-products is formed, much easier than in the same process without hydrochloric acid. (google.pl)
Phenol2
Aniline can alternatively be prepared from ammonia and phenol derived from the cumene process. (wikipedia.org)
phenol is transformed into cyclohexanol, aniline into cyclohexylamine. (linguix.com)
Dyes2
Because an early source of the benzene from which they are derived was coal tar, aniline dyes are also called coal tar dyes. (wikipedia.org)
Curious minds perusing nineteenth-century books and press articles will encounter accounts of poisoned painters, artisans and fashionistas alongside entertaining murder stories involving pigments and dyes containing toxic chemical components such as arsenic, lead, or mercury. (envhistnow.com)
Potassium permanganate in neutral solution oxidizes it to nitrobenzene , in alkaline solution to azobenzene , ammonia and oxalic acid , in acid solution to aniline black. (wikidoc.org)
Although aniline is weakly basic, it precipitates zinc , aluminium and ferric salts, and on warming expels ammonia from its salts. (wikidoc.org)
Oxidation of aniline2
The oxidation of aniline has been heavily investigated, and can result in reactions localized at nitrogen or more commonly results in the formation of new C-N bonds. (wikipedia.org)
The oxidation of aniline has been carefully investigated. (wikidoc.org)
Compounds2
FKM compounds that are peroxide cured possess better resistance to acid solutions, and can replace those that are litharge cured in an acid solution. (technoad.com)
FKM rubber compounds perform well in petroleum products, fuels or blends with methanol or ethanol, diesel or blends with biodiesel, mineral oil and grease, silicone oil and grease, high vacuum environments, ozone, strong acids. (technoad.com)
Nitrobenzene4
First, benzene is nitrated with a concentrated mixture of nitric acid and sulfuric acid at 50 to 60 °C to yield nitrobenzene. (wikipedia.org)
The nitrobenzene is then hydrogenated (typically at 200-300 °C) in the presence of metal catalysts: The reduction of nitrobenzene to aniline was first performed by Nikolay Zinin in 1842, using sulfide salts (Zinin reaction). (wikipedia.org)
The reduction of nitrobenzene to aniline was also performed as part of reductions by Antoine Béchamp in 1854, using iron as the reductant (Bechamp reduction). (wikipedia.org)
The resulting nitrobenzene is then treated with hydrogen gas, typically at 600 °C in presence of a nickel catalyst to give aniline, this conversion being called hydrogenation . (wikidoc.org)
Pure aniline1
As an explanation of the chemical reactions going on in the processes above described I give the following:Violanilin is the product of elimination of hydrogen from pure aniline, and simultaneous condensation. (google.pl)
Nitric acid2
First, benzene is nitrated using a mixture of concentrated mixture of nitric acid and sulfuric acid at 50 - 60 °C, which gives the electrophile NO 2 + that attacks the benzene, displacing a proton H + from that particular carbon atom. (wikidoc.org)
In a second method, toluene is mixed with nitric acid and oxidized to produce benzoic acid. (linguix.com)
Oxalic1
Smooth, crack-free deposits are obtained by electrolysis from an aqueous, monoacidic bath containing a Ru derivative which is the product of reaction of K 3 [Ru 2 N(H 2 O) 2 Cl 8 ] with oxalic acid. (matthey.com)
Amines3
Like other amines, aniline is both a base (pKaH = 4.6) and a nucleophile, although less so than structurally similar aliphatic amines. (wikipedia.org)
Aromatic amines such as aniline are generally much weaker bases than aliphatic amines. (wikidoc.org)
Aniline combines directly with alkyl iodides to form secondary and tertiary amines. (wikidoc.org)
HYPOCHLOROUS ACID2
Hypochlorous acid gives 4-aminophenol and para-amino diphenylamine . (wikidoc.org)
Breakage and Binding of DNA by Reaction Products of Hypochlorous Acid with Aniline, 1-Napthylamine, or 1-Naphthol. (epa.gov)
Phenylamine1
Aniline , phenylamine or aminobenzene is an organic compound with the formula C 6 H 5 N H 2 . (wikidoc.org)
Hydrochloric acid1
Hydrochloric acid and potassium chlorate give chloranil. (wikidoc.org)
Salts4
By the treatment of these bases and their salts with oil of vitriol, as described above, the four conjugated acids and their salts may be produced. (google.pl)
Chromic acid converts it into quinone , while chlorates , in the presence of certain metallic salts (especially of vanadium ), give aniline black . (wikidoc.org)
Aniline and its ring-substituted derivatives react with nitrous acid to form diazonium salts . (wikidoc.org)
Consisting of a phenyl group (−C6H5) attached to an amino group (−NH2), aniline is the simplest aromatic amine. (wikipedia.org)
Phenyl group1
Many analogues and derivatives of aniline are known where the phenyl group is further substituted. (wikipedia.org)
Amino1
The amino group in aniline is flatter (i.e., it is a "shallower pyramid") than that in an aliphatic amine, owing to conjugation of the lone pair with the aryl substituent. (wikipedia.org)
Dimethyl2
Monomethyl and dimethyl aniline are colourless liquids prepared by heating aniline, aniline hydro-chloride and methyl alcohol in an autoclave at 220 °C. They are of great importance in the colour industry. (wikidoc.org)
Monomethyl aniline boils at 193-195 °C, dimethyl aniline at 192 °C. (wikidoc.org)
Picric acid2
The yellow dye picric acid and the red dye fuchsine, an aniline dye derived from the distillation of coal-tar, were also dangerous to handle. (envhistnow.com)
Where destruction pure and simple is desired, the shell is charged with a high explosive such as picric acid or T.N.T., the colloquial abbreviation for the devastating agent scientifically known as " Trinitrotoluene ," the base of which, in common with all the high explosives used by the different powers and variously known as lyddite, melinite, cheddite, and so forth, is picric acid. (linguix.com)
Sulfuric acid1
Reaction with sulfuric acid at 180°C produces sulfanilic acid , NH 2 C 6 H 4 SO 3 H. (wikidoc.org)
Phenols1
Like phenols , aniline derivatives are highly susceptible to electrophilic substitution reactions. (wikidoc.org)
Fuchsine1
and aniline oil for safranine, which contains aniline and ortho-toluidine and is obtained from the distillate (échappés) of the fuchsine fusion. (wikipedia.org)
Derivatives1
Many derivatives of aniline can be prepared similarly. (wikidoc.org)
Molecule2
The amine group in anilines is a slightly pyramidalized molecule, with hybridization of the nitrogen somewhere between sp3 and sp2. (wikipedia.org)
Mauvanilin is the product of elimination of hydrogen and simultaneous condensation of a mixture of two molecules.of aniline and one molecule of toluydin. (google.pl)
Amides2
Aniline reacts with carboxylic acids [1] or more readily with acyl chlorides such as acetyl chloride to give amides . (wikidoc.org)
The amides formed from aniline are sometimes called "anilides", for example CH 3 -CO-NH-C 6 H 5 is acetanilide . (wikidoc.org)