Mild and eco-friendly chemoselective acylation of amines in
Thus when acetic anhydride was added to an aqueous solution of amine hydrochloride no acetylation acylation of primary amines and thus will find useful.
Efficient acetylation of primary amines and amino acids in
put forward for the acylation of amines using acetic anhydride such as
THE INVESTIGATION OF AMINO ACID REACTIONS BY METHODS
On the other hand it also has long been recognized (Pinnow (11)) that the acetylation of primary amines by acetic anhydride is greatly in- hibited when
Derivatization With Acetic Anhydride: Applications to the Analysis of
3 juin 1994 However after acetylation
Quantitative Acetylation of Amines by Means of Acetyl Chloride and
determination of primary and secondary hy- droxyl groups. Their method consists essen- tially in modifying theusual acetic anhydride- pyridine acetylation
Note A green approach to chemoselective N- acetylation of amines
acetylation of primary and secondary amines where a 11 using bismuth ferrite (BiFeO3) nanopowder
Metal Acetate/Metal Oxide in Acetic Acid: An Efficient Reagent for
8 juin 2010 The acetylation of amines is usually performed employing acid anhydride or acetyl chloride in the presence of stoichiometric amount of an amine.
Acetylation of Polyethylenimine Enhances Gene Delivery via
29 juin 2006 acetylation of up to 43% of the primary amines with acetic anhydride. In the present work we investigated the effects of further increasing ...
NN-DIACETYLAMINES AS BY-PRODUCTS FROM THE
Acetylation of five alicyclic amines and isopropylamine with a large excess of acetic anhydride acylation of primary amides has been reported and it does ...
UC Riverside
1 déc. 2009 primary amine acetylation. Acetylated dendrimers were complexed with siRNA ... ometric ratio of primary amines: acetic anhydride was used to ...
Efficient acetylation of primary amines and amino acids in
put forward for the acylation of amines using acetic anhydride such as
Mild and eco-friendly chemoselective acylation of amines in
multi-step synthetic process.1 Acetic anhydride and acetyl chloride are aromatic 3-9 amines
Facile and Efficient Acetylation of Primary Alcohols and Phenols with
3 déc. 2013 tertiary amine bases such as either triethylamine or pyridine [12]; Lewis ... acetylation of alcohols using acetic anhydride
NN-DIACETYLAMINES AS BY-PRODUCTS FROM THE
amines and isopropylamine with a large excess of acetic anhydride ... catalyzed (6) and acid-catalyzed (7 8
THE INVESTIGATION OF AMINO ACID REACTIONS BY METHODS
that the acetylation of primary amines by acetic anhydride is greatly in- is added to an amount of anthranilic acid (or other suitable amine) which.
THE PREPARATION OF SOME PRIMARY AMINES BY THE
anhydride solution with the formation of the acetyl derivatives of the in the acetic anhydride reductions the yield of pure primary amine ac-.
Derivatization With Acetic Anhydride: Applications to the Analysis of
3 juin 1994 Acetylation with acetic anhydride under both aqueous and anhydrous conditions
Metal Acetate/Metal Oxide in Acetic Acid: An Efficient Reagent for
system for chemoselective N-acetylation of primary and secondary amines in excellent was used with acetic anhydride and the reaction was not a che-.
Catalytic Acetylation of Amines with Ethyl Acetate
Primary amines are acetylated in high yield while secondary bulky amines and aniline are with acetic anhydride /l/ or under basic conditions /2
Acetylation of PAMAM dendrimers for cellular delivery of siRNA
23 avr. 2009 Results: PAMAM dendrimers were reacted with acetic anhydride to obtain controlled extents of primary amine acetylation.
