Boric acid as an efficient catalyst for the synthesis of 1,1-diacetate under solvent-free condition  

作　　者：K.F Shelke S.B.Sapkal G.K.Kakade P.V.Shinde B.B.Shingate M.S.Shingare 

机构地区：[1]Organic Research Laboratory,Department of Chemistry,Dr.Babasaheb Ambedkar Marathwada University

出　　处：《Chinese Chemical Letters》2009年第12期1453-1456,共4页中国化学快报（英文版）

摘　　要：Boric acid （BO3H3） is an inexpensive, efficient and mild catalyst for the synthesis of 1,1-diacetate （acylal） from the various aromatic and heteroaryl aldehydes with acetic anhydride at room temperature under solvent-free condition. The present method does not involve any hazardous organic solvents or catalysts. This method gives notable advantages such as excellent chemoselectivity, mild reaction condition, short reaction times and excellent yield.Boric acid （BO3H3） is an inexpensive, efficient and mild catalyst for the synthesis of 1,1-diacetate （acylal） from the various aromatic and heteroaryl aldehydes with acetic anhydride at room temperature under solvent-free condition. The present method does not involve any hazardous organic solvents or catalysts. This method gives notable advantages such as excellent chemoselectivity, mild reaction condition, short reaction times and excellent yield.

关 键 词：Aromatic and heteroaryl aldehyde Boric acid 1 1-DIACETATE SOLVENT-FREE 

分 类 号：O621.2[理学—有机化学]