【摘 要】
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Functionalized chromenes have received considerable attention due to their wide range biological and pharmacological activities1.It is also an important class of compounds which are constituent of the
【机 构】
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Department of Chemistry,Shanghai University,Shanghai 200444,P.R.China
论文部分内容阅读
Functionalized chromenes have received considerable attention due to their wide range biological and pharmacological activities1.It is also an important class of compounds which are constituent of the structural unit of a series of biological active natural products and drugs2.Thus,we report here an efficient method for the synthesis of 2-perfluoroalkyl-2-hydroxy-2H-chromene-3-carboxylates 3 involving a one-pot reaction of substituted salicylaldehydes 1 and methyl perfluoroalk-2-ynoates 2 in the presence of L-proline.
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