Enantioselective Organocatalytic Michael Addition of Aldehydes to Trifluoroethylidene Malonates
作者:Lele Wen、Qilong Shen、Long Lu
DOI:10.1021/ol101894h
日期:2010.10.15
An efficient, highly enantioselective, organocatalytic Michael addition reaction of aldehydes with trifluoroethylidene malonates is described. The asymmetric reaction provided highly optically pure β-trifluoromethyl aldehydes which can be conveniently transformed into 4,4,4-trifluoromethyl butyric acid and trifluoromethyl substituted δ-lactones without loss in enantioselectivity.
描述了醛与三氟亚乙基丙二酸酯的有效,高对映选择性的有机催化迈克尔加成反应。不对称反应提供了高度光学纯的β-三氟甲基醛,可以方便地转化为4,4,4-三氟甲基丁酸和三氟甲基取代的δ-内酯,而不会损失对映选择性。