Acetonyltriphenylphosphonium Bromide (ATPB): A Versatile Reagent for the Acylation of Alcohols, Phenols, Thiols and Amines and for 1,1-Diacylation of Aldehydes under Solvent-Free Conditions
作者:Abu T. Khan、Lokman H. Choudhury、Subrata Ghosh
DOI:10.1002/ejoc.200500066
日期:2005.7
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
在室温下,在丙酮基三苯基溴化鏻(ATPB;5 mol%)存在下,通过用乙酸酐(1.5-2.0 当量)处理,可以很容易地将多种醇、酚、胺和硫醇转化为相应的乙酸衍生物. 使用相同的预催化剂,脂肪醛和芳香醛也可以在回流条件下转化为相应的双乙酸酯。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)