Acetonyltriphenylphosphonium Bromide (ATPB): A Versatile Reagent for the Acylation of Alcohols, Phenols, Thiols and Amines and for 1, 1??Diacylation of Aldehydes …

…, LH Choudhury, S Ghosh

Index: Khan, Abu T.; Choudhury, Lokman H.; Ghosh, Subrata European Journal of Organic Chemistry, 2005 , # 13 p. 2782 - 2787

Full Text: HTML

Citation Number: 29

Abstract

Abstract A wide variety of alcohols, phenols, amines and thiols may easily be converted into the corresponding acetate derivatives by treatment with acetic anhydride (1.5–2.0 equivalents) in the presence of acetonyltriphenylphosphonium bromide (ATPB; 5 mol%) in good yields at room temperature. With the same precatalyst, both aliphatic and aromatic aldehydes can also be transformed into the corresponding gem-diacetates under reflux ...