In the course of studying the acetylation of amines (1) we have examined the reaction of several tertiary amines with acetic anhydride. It was found that
8 The same has been achieved using amine hydrochloric acid
8 juin 2010 This alternative method for N-acetylation of amines avoids the use of conventional acetylating agents (acetyl chloride or acetic anhydride) and ...
tially in modifying theusual acetic anhydride- pyridine acetylation mixture values of amines using the Smith-Bryant reagent. 3. A new acetylating ...
put forward for the acylation of amines using acetic anhydride such as
The reaction procedure requires no other solvent and is rapid with good to excellent yields. Keywords: Microwave irradiation
Acetylation of five alicyclic amines and isopropylamine with a large excess of acetic anhydride for 1 hour under reflux led to formation of appreciable
Reactions of acetic anhydride with hydroxyl groups yield the corresponding acetate ester with coproduction of acetic acid. Acetylation of amines produce
21 nov. 2016 We report a cheap and simple method for the acetylation of a variety of amines using catalytic acetic acid and either ethyl acetate.
The reaction is usually achieved through acetylation with acetic anhydride /l/ or under basic conditions /2
3 déc. 2013 tertiary amine bases such as either triethylamine or pyridine [12]; Lewis ... acetylation of alcohols using acetic anhydride
put forward for the acylation of amines using acetic anhydride such as
In the course of studying the acetylation of amines (1) we have examined the reaction of several tertiary amines with acetic anhydride.
Keywords: amines N-acetylation; chemoselectivity
Abstract: Solvent-free acetylation of alcohols phenols
9 We thought to add sodium bicarbonate to an aqueous solution of amine hydrochloride which will liberate free amine and react with acetic anhydride and convert
Thiols under Catalyst and
An optimization on amine:acetic acid anhydride (AAA) ratio was performed on anthranilic acid in a DES made of choline chloride (ChCl) and malonic acid (Table 1)
7 nov. 2012 transformations are usually performed with acetic anhydride and/or acetyl ... and efficient method for the acetylation of amines phenols.
amines using catalytic amount of zinc acetate in acetic acid under microwave irradiation. carried out with acetic anhydride or acetyl chloride in.