Efficient synthesis of N-substituted pyrroles catalyzed by a novel an organic–inorganic hybrid solid acid catalyst
作者:Lanchang Gao、Liu Bing、Zehui Zhang、Huang Kecheng、Hu Xiaoyun、Kejian Deng
DOI:10.1016/j.jorganchem.2013.03.018
日期:2013.7
A novel organic-inorganic hybrid solid acid [MIMBS](3)PW12O40 has been successfully prepared. It showed high catalytic activity for N-substituted pyrroles through the cyclocondensation of primary amines with 1,4-dicarbonyl compounds. The solid acid catalyst is stable and can be easily recovered and reused without losing its activity in its efficiency. In addition, a plausible mechanism for the catalytic action of [MIMBS](3)PW12O40 has been introduced. (C) 2013 Elsevier B.V. All rights reserved.