科研之友
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摘要
Through multi-component condensation of aldehydes, 1,3-dione, Meldrum's acid, acid 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 this novel protocol include simple operational process, environmental benignancy, and high efficiency.
- 出版日期2006
- 单位河南师范大学
