Lactic acid as an invaluable bio-based solvent for organic reactions
作者:Jie Yang、Jia-Neng Tan、Yanlong Gu
DOI:10.1039/c2gc36083g
日期:——
3-dicarbonyl compounds. In these reactions, lactic acidsolvent exhibited many advantages including bio-based origin, superior synthetic efficiency, ease of isolating the product and good recyclability of the reaction medium. The concept of using lactic acid as a green solvent not only enriches the diversity and versatility of bio-based green solvents, but also offers us an effective means for designing
An efficient synthetic method was developed for the selective construction of 2H-chromene derivatives from various salicylaldehydes and acetylenic diesters using a dual catalyst system (p-toluenesulfonic acid monohydrate and pyrrolidine). The advantages of this transformation include high selectivity, good functional group tolerance, operational simplicity, and mild reaction conditions.