P<sub>2</sub>O<sub>5</sub>/Al<sub>2</sub>O<sub>3</sub>as an Efficient Heterogeneous Catalyst for the Acetylation of Alcohols, Phenols, Thiols, and Amines Under Solvent-Free Conditions
作者:Amin Zarei、Abdol R. Hajipour、Leila Khazdooz
DOI:10.1080/00397911.2010.492197
日期:2011.5.4
Abstract A convenient, rapid, and efficient method for the acetylation of alcohols, phenols, thiols, and amines has been developed by using acetic anhydride in the presence of a catalytic amount of P2O5 /Al2O3 under solvent-free conditions at room temperature. This reaction was studied under different conditions, and several solvents were examined for this conversion. However, in terms of reaction
摘要 在室温无溶剂条件下,在催化量的 P2O5/Al2O3 存在下,使用乙酸酐开发了一种方便、快速、有效的乙酰化醇、酚、硫醇和胺的方法。在不同条件下研究了该反应,并针对该转化检查了几种溶剂。然而,在反应时间和收率方面,发现在无溶剂条件下进行反应时获得了最好的结果。没有观察到旋光醇的外消旋和糖的差向异构。采用无毒廉价的材料,后处理简单干净,反应时间短,产品收率好是该方法的优点。