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AminesChemistry, OrganicHydrogenHydrogen BondingHydrogen PeroxideHydrogen SulfideAmine Oxidase (Copper-Containing)Biogenic AminesMolecular StructureAlkylationModels, MolecularOxidation-ReductionPeroxiredoxinsStructure-Activity RelationshipPeroxidasesStereoisomerismHydrogen CyanideKineticsCatalysisMagnetic Resonance SpectroscopyCatalaseModels, ChemicalHydrogen-Ion ConcentrationAlkanesCrystallography, X-RayMolecular ConformationOxidantsWaterDeuterium Exchange MeasurementMolecular Sequence DataKetonesEstersTyramineOctopamineSulfidesEthersAlcoholsBinding SitesProtein ConformationHeterocyclic CompoundsReceptors, Biogenic AmineSubstrate SpecificityOxidoreductases Acting on CH-NH Group DonorsSemicarbazidesIndicators and ReagentsSurface-Active AgentsCystathionine gamma-LyaseThermodynamicsFree RadicalsAmino Acid SequenceHydrogenaseTemperature
Tertiary aminesAmmoniaCompoundsHalidesAcylAmidesMethylAromatic aminesAlcoholsSubstituentQuaternary ammonSecondaryCarbonylTrimethylamineKetonesMoleculesAliphaticDiaminesPhenylStructurallyReactivityAmmonium chlorideNucleophilicPrimaryBondsFattyAcidsCatalystsAlkenesReductiveRoom temperatureMolecularAminoSynthesisGroupsOxidationCarbon atomOrganic compoundPeroxideMagnesiumCationLone pairAlkalineBases
Tertiary amines3
Ammonia13
  • Structurally amines resemble ammonia , wherein one or more hydrogen atoms are replaced by organic substituents such as alkyl and aryl groups. (newworldencyclopedia.org)
  • As displayed in the images below, primary amines arise when one of three hydrogen atoms in ammonia is replaced by an organic substituent. (newworldencyclopedia.org)
  • Gaseous amines possess a characteristic ammonia smell, liquid amines have a distinctive "fishy" smell. (newworldencyclopedia.org)
  • In this work, we report the insertion of ammonia into carbon skeletons to build diverse aromatic N -heterocycles via a multiple electron transfer pathway involving hydrogen evolution with up to 99.2% theoretical atom economy. (nature.com)
  • Fatty amines (also called as oleochemicals) are organic compounds that are derivatives of ammonia and one or more hydrogen atoms in these compounds, which are substituted by either aryl or alkyl group. (alliedmarketresearch.com)
  • Amines are derivatives of ammonia, produced by using the transamination of aldehydes or the decarboxylation of amino acids. (gehring-montgomery.com)
  • Amines are compounds in which one or more of the hydrogen atoms in ammonia have been replaced by an organic functional group. (aablocks.com)
  • Amines are derivatives of ammonia, wherein one or more hydrogen atoms have been replaced by a carbon chain substituent, to become a primary, secondary, tertiary amine, or a quaternary ammonium moiety. (aablocks.com)
  • Amines are colorless, less volatile organic compounds derived from ammonia by replacing hydrogen atoms with an aryl or alkyl group. (startupgb.com)
  • Alkylamines Market Alkylamines Marke is expected to reach USD 9,453.2 Million in 2028 and register a revenue CAGR of 5.9% over the forecast period Alkylamines are ammonia derivatives with one or more alkyl groups replacing one or more hydrogen atoms. (djjmeets.com)
  • Amines important points - Amines are the organic compounds derived from ammonia, where one or more hydrogen atoms are replaced by the alkyl or aryl groups. (neetexambooster.in)
  • They are the derivatives of ammonia (NH3) where one or more hydrogen atoms are replaced by alkyl or aryl groups. (neetexambooster.in)
  • Amines can be synthesized by reaction of ammonia with alkyl halides or aryl halides in a process known as nucleophilic substitution. (neetexambooster.in)
Compounds16
  • Amines are organic compounds and a type of functional group that contain nitrogen as the key atom. (newworldencyclopedia.org)
  • An important exception to this rule is that compounds of the type RC(O)NR 2 , where the C(O) refers to a carbonyl group, are called amides rather than amines. (newworldencyclopedia.org)
  • Values for the negative logarithm of the acid dissociation constant, pKa, of the conjugated acid of amines, diamines and cyclic organic nitrogen compounds, shown together with the molecular structure of the acids. (engineeringtoolbox.com)
  • Aliphatic amine refers to a large class of organic amine compounds with carbon chain length in the range of C8-C22. (bayan-chem.com)
  • Amines are functional group compounds that contain at least one nitrogen atom bonded to hydrogen atoms or to alkyl or aryl groups. (aablocks.com)
  • If the substituents (other than hydrogen atoms) are alkyl groups, the resulting compounds are termed alkyl amines. (aablocks.com)
  • Classification of Elements & Periodicity in Properties, Process of isolation of Metals, p- Block Elements, s- Block Elements (Alkali & Alkaline), Hydrogen, Co-ordination Compounds and Environmental chemistry. (mypat.in)
  • These antioxidants are usually hindered amines (p-Phenylene diamine, trimethyl dihydroquinolines, alkylated diphenyl amines) or substituted phenolic compounds with one or more bulky functional groups such as a tertiary butyl at 2,6 position commonly. (chemicalland21.com)
  • CH 3 (no S N 1) so, tertiary alkyl moiety exists in lots of phenolic antioxidant compounds. (chemicalland21.com)
  • SECTION B: A variety of optically active amine-borane complexes have been used as polarity reversal catalysts for the kinetic resolution of racemic carbonyl-containing compounds at -74 °C in oxirane solvent. (ucl.ac.uk)
  • Overall, amines are the versatile compounds with diverse applications in chemistry. (neetexambooster.in)
  • Amines are the organic compounds that contain a nitrogen atom bonded to one or more alkyl or aryl groups. (neetexambooster.in)
  • Amines can undergo the oxidation reactions to form amine oxides or nitroso compounds. (neetexambooster.in)
  • Amines are widely used in synthesis of pharmaceuticals, dyes, pesticides, and many other organic compounds. (neetexambooster.in)
  • Tables and figures below show the liquid density at 20°C for different groups of organic sulfur compounds , compared to other kinds of organic classes as alkanes, alcohols, acids and amines . (engineeringtoolbox.com)
  • Also, examples of the structures of the sulfur compounds thiols, dialkyl sulfides, methylalkyl sulfides, ethyl alkyl sulfides, isopropyl alkyl sulfides, diisoalkyl sulfides, dialkyl disulfides and alkylthiophenes are shown in the table below. (engineeringtoolbox.com)
Halides2
  • Alcohols were efficiently converted to alkyl halides using 1- n -butyl-3-methylylimidazolium halide ioniq liquids in the presence of Br nsted acids at room temperature. (organic-chemistry.org)
  • Amines can undergo the Gabriel synthesis, which converts primary alkyl halides into primary amines using phthalimide as a starting material. (neetexambooster.in)
Acyl2
  • Amines can undergo alkylation and acylation reactions, where the alkyl or acyl groups are added to the nitrogen atom. (neetexambooster.in)
  • The Friedel-Crafts reaction creates new alkyl- or acyl-aromatic bonds, with or without cation rearrangement. (yale.edu)
Amides4
  • Amides and amines have different structures and properties, so the distinction is chemically important. (newworldencyclopedia.org)
  • Somewhat confusing is the fact that amines in which an N-H group has been replaced by an N-M group (M = metal) are also called amides. (newworldencyclopedia.org)
  • Especially preferred amides are the Ci^-alkyl amides of C1-4-fatty acids such as dimethylformamide and dimethylacetamide. (allindianpatents.com)
  • Amines can be converted into amides by the reaction with carboxylic acids or acid chlorides. (neetexambooster.in)
Methyl1
Aromatic amines5
Alcohols6
  • Thus the boiling point of amines is higher than those for the corresponding phosphines, but generally lower than the corresponding alcohols . (newworldencyclopedia.org)
  • Alcohols, or alkanols, resemble amines but feature an -OH group in place of NR 2 . (newworldencyclopedia.org)
  • Knölker type iron complexes, used directly or generated in situ, are suitable catalysts for (de)hydrogenation reactions enabling the synthesis of carbonyl derivatives, amines and alcohols of industrial and academic interest. (eurekaselect.com)
  • Knölker type complexes were also competent catalysts for sequential reactions based on temporary dehydrogenative alcohol activation including dynamic kinetic resolution of racemic secondary alcohols (99% e.e.) and borrowing hydrogen methodology. (eurekaselect.com)
  • We are developing homogeneous catalysts that efficiently removes H 2 from alcohols and amines and enable broader diversification from simple widely available feedstock chemicals. (umich.edu)
  • Molweight, melting and boiling point, density, pKa-values, as well as number of carbon and hydrogen atoms in molecules are given for 150 different alcohols and acids. (engineeringtoolbox.com)
Substituent3
  • An organosulfur compound that contains a carbon-bonded sulfhydryl group (-SH), with the general formula R-SH (where R represents an alkyl or other organic substituent). (engineeringtoolbox.com)
  • An organic compound of the form R'-S-R'' (where R' and R'' represents an alkyl or other organic substituent). (engineeringtoolbox.com)
  • It can be a primary (R-NH2), a secondary (R',R''-NH) or a tertiary amine (R',R'',R'''-N), where R represent an alkyl or other organic substituent. (engineeringtoolbox.com)
Quaternary ammon1
  • Amines can form quaternary ammonium salts, where all the four substituents on nitrogen atom are alkyl or aryl groups. (neetexambooster.in)
Secondary4
  • Hydrogen bonding significantly influences the properties of primary and secondary amines as well as the protonated derivatives of all amines. (newworldencyclopedia.org)
  • Like general amines, it is divided into four categories: primary amine, secondary amine, tertiary amine and polyamine. (bayan-chem.com)
  • On the nitrogen atom, a primary (1°) amine has one alkyl (or aryl) group, a secondary (2°) amine has two, and a tertiary (3°) amine. (djjmeets.com)
  • Amines can be classified as primary (RNH2), secondary (R2NH), or tertiary (R3N), depending on number of alkyl or aryl groups attached to the nitrogen atom. (neetexambooster.in)
Carbonyl2
  • The key step involves enantioselective abstraction of hydrogen from a C-H bond α to the carbonyl function by optically active amine-boryl radicals. (ucl.ac.uk)
  • Amines can undergo the reductive amination, a reaction where a carbonyl compound reacts with an amine and a reducing agent to form an amine. (neetexambooster.in)
Trimethylamine1
  • Examples of such amines are n-butylamine, 2-ethylbutylamine, 2-ethylhexylamine, trimethylamine and triethylamine. (allindianpatents.com)
Ketones2
Molecules3
  • We are using these appended functional groups (hydrogen bond donor/acceptors, or Lewis acid/bases) to augment reactivity of the central transition metal in order to promote the activation/delivery of small molecules to appropriate substrates. (umich.edu)
  • Amines are found in many biologically active molecules. (aablocks.com)
  • Amines have the higher boiling points compared to hydrocarbons of similar molecular weight due to presence of hydrogen bonding between amine molecules. (neetexambooster.in)
Aliphatic2
Diamines2
  • Therefore the experimental data available for this group of alkyl-1,3 -diamines are used for the evaluation of the biodegradability of N-C 12 -14 -propane-1,3-diamine. (europa.eu)
  • The observed half-life of 14 C hexadecylamine of 8.98 days at 20 °C as determined according to an OECD 307 test is used for read-across to the diamines as both the primary alkyl amines and diamines are structurally related, readily biodegradable and have a similar sorption to soil. (europa.eu)
Phenyl1
  • The thiourea may be substituted by phenyl, chlorophenyl, C1-4-alkyl or C1-4-alkoxy groups. (allindianpatents.com)
Structurally2
  • Biodegradation screening tests are available for various structurally related alkyl-1,3-diaminopropanes. (europa.eu)
  • However a soil biodegradation test is performed with the structurally related 14 C hexadecyl amine. (europa.eu)
Reactivity2
  • Interestingly, the presence of an amine group strongly increases the reactivity of the aromatic ring, due to an electron-donating effect. (newworldencyclopedia.org)
  • Since the majority of the alkyl chains consist of C 12 to C 18 units, and the unsaturated part is mainly located in the more central part of the alkyl chain, significant changes in chemical behavior and/or reactivity is not to be expected. (europa.eu)
Ammonium chloride1
  • Amines can form salts with acids, such as ammonium chloride (NH4Cl), due to protonation of the nitrogen atom. (neetexambooster.in)
Nucleophilic1
  • For all acceptors, addition of each of the electrophilic α-(alkoxycarbonyl)alkyl radicals is faster than the corresponding addition of simple (nucleophilic) alkyl radicals, a result which is attributed to the importance of polar effects in the transition states. (ucl.ac.uk)
Primary2
  • In primary antioxidants (also called free-radical scavengers), antioxidative activity is implemented by the donation of an electron or hydrogen atom to a radical derivative. (chemicalland21.com)
  • Amines can undergo the Hofmann rearrangement, a reaction where a primary amide is converted into a primary amine with one fewer carbon atom by treatment with the bromine and the aqueous base. (neetexambooster.in)
Bonds1
Fatty9
Acids2
  • Amines have the higher boiling points and can form salts with the acids due to hydrogen bonding. (neetexambooster.in)
  • Amines can be protonated by the strong acids to form ammonium ions, which can be deprotonated by strong bases to regenerate amine. (neetexambooster.in)
Catalysts2
  • A sulfoxide reduction/C-S bond metathesis cascade between sulfoxides and alkyl bromides in an ionic liquid provides high-value sulfides without the use of any catalysts or bases. (organic-chemistry.org)
  • Amines can act as the catalysts in various chemical reactions. (neetexambooster.in)
Alkenes1
  • SECTION A: ESR spectroscopic studies of the addition of α-(alkoxycarbonyl)alkyl radicals to terminal alkenes, furan and isocyanides were carried out in cyclopropane solution at low temperatures. (ucl.ac.uk)
Reductive2
  • Amines also plays a role in important reactions like Hofmann degradation, Gabriel synthesis, reductive amination, and Hofmann rearrangement. (neetexambooster.in)
  • Amines can participate in reactions such as Mannich reaction, Curtius rearrangement, and the reductive coupling reactions. (neetexambooster.in)
Room temperature2
Molecular3
  • high molecular weight amines are, of course, solids. (newworldencyclopedia.org)
  • In the table below, pK a1 and pK a2 is given together with boiling and melting point, density and molecular weight, as well as number of carbon, hydrogen and oxygen atoms in each molecule. (engineeringtoolbox.com)
  • The molecular structures of optically active quinuclidine-isopinocampheylborane and of the polycyclic amine-borane formed by cyclisation of N-(1 R)-nopylpyrrolidine-borane have been determined by X-ray crystallography. (ucl.ac.uk)
Amino1
Synthesis1
  • Amines can be used as a chiral auxiliary groups in asymmetric synthesis. (neetexambooster.in)
Groups3
Oxidation1
  • In this cascade, classical Kornblum oxidation is employed to reduce sulfoxides with alkyl bromides. (organic-chemistry.org)
Carbon atom1
  • In a 2-thiol and a 3-thiol the -SH group is located at the second and third carbon atom in the alkyl chain, respectively. (engineeringtoolbox.com)
Organic compound1
Peroxide2
Magnesium1
  • Prolonged exposure to high concentrations of ZDTPs, calcium alkyl phenates, and magnesium, sodium, and calcium sulphonates had significant effects on the reproductive organs of male rabbits (testicular atrophy and reduction or absence of spermatozoa) which appeared to be species specific. (cdc.gov)
Cation1
Lone pair3
  • The amine functional group contains a basic nitrogen atom with a lone pair of electrons. (aablocks.com)
  • Amines exhibit basic properties due to lone pair of electrons on the nitrogen atom, and they can act as bases and nucleophiles. (neetexambooster.in)
  • Amines exhibits basic properties due to lone pair of electrons on the nitrogen atom, which can accept a proton. (neetexambooster.in)
Alkaline1
Bases2