secondary amine वाक्य
उदाहरण वाक्य
मोबाइल
- In foods, nitrosamines are produced from nitrites and secondary amines, which often occur in the form of proteins.
- While usage of ammonium salts gives unsubstituted amino acids, primary and secondary amines also successfully give substituted amino acids.
- NaBH ( OAc ) 3 may also be used for reductive alkylation of secondary amines with aldehyde-bisulfite adducts.
- Primary and secondary amines, for example, MEA and DEA, will react with CO 2 and form degradation products.
- Secondary amines react with chloranil to give a brown / red / orange derivative, the colour depending on the amine.
- For example, reaction of 1-bromooctane with ammonia yields almost equal amounts of the primary amine and the secondary amine.
- "' Dicyclohexylamine "'is a secondary amine with the chemical formula HN ( C 6 H 11 ) 2.
- The reaction of ninhydrin with secondary amines gives an iminium salt, which is also coloured, and this is generally yellow orange in color.
- In particular, ?-arylation of cyclic ketones has been achieved under similar reaction conditions, but using azepane as the secondary amine cocatalyst.
- Another common example is the reaction of a primary amine or secondary amine with a carboxylic acid or with a carboxylic acid derivative to form an amide.
- "' Diethylamine "'is an organic compound with the formula ( CH 3 CH 2 ) 2 NH . It is a secondary amine.
- The photocatalyst then oxidizes an enamine species, transiently generated by the condensation of an aldehyde with a secondary amine cocatalyst, such as the optimal isopropyl benzylamine.
- The most common secondary amines encountered in forensic chemistry include 3, 4-methylenedioxymethamphetamine ( MDMA, the main component in Ecstasy ) and phenethylamines such as methamphetamine.
- Amino acids containing a secondary amine group ( the only proteinogenic amino acid of this type is proline ) are sometimes named imino acids, though this usage is obsolescent.
- Similar compounds are monoethanolamine ( MEA ), a primary amine, and diethanolamine ( DEA ), a secondary amine, both of which are also used for amine gas treating.
- Although this reaction relies on the use of a secondary amine organocatalyst to generate the enamine species which is oxidized in the proposed mechanism, no enantioselective variant of this reaction exists.
- The secondary amine nitrogen of 2-( 4-Ethoxybenzyl )-5-nitro-1H-benzoimidazole was then alkylated with ( 2-Chloroethyl ) diethylamine to form etonitazene.
- This process occurs via keto-enol tautomerization to facilitate rotation about a carbon-carbon bond, followed by tautomerization back to the aldehyde, and condensation with the proximal secondary amine.
- A secondary amine was combined with an aldehyde to form an intermediate azomethine ylide, which underwent a 1, 3-dipolar cycloaddition with an unsaturated oxindole also present in the reaction mixture.
- The reactions are difficult to control because the reaction product ( a primary amine or a secondary amine ) are often more nucleophilic than the precursor and will thus preferentially react with the alkylating agent.
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