An efficient and green synthesis of 1,4-dihydropyridine derivatives through multi-component reaction in ionic liquid
作者:Xue Sen Fan、Yan Zhen Li、Xin Ying Zhang、Gui Rong Qu、Jian Ji Wang、Xue Yuan Hu
DOI:10.1002/hc.20221
日期:——
Through multi-component condensation of aldehydes, 1,3-dione, Meldrum's acid, and ammonium acetate in an ionic liquid ([bmim][BF4]), a series of 1,4-dihydropyridine derivatives were prepared in excellent yields in the absence of any additional catalysts. In addition, [bmim][BF4] can be recovered and reused effectively for at least six times without obvious decrease of its efficiency. Advantages of