Organocatalytic Enantioselective Decarboxylative Addition of Malonic Acids Half Thioesters to Isatins
作者:Noriyuki Hara、Shuichi Nakamura、Yasuhiro Funahashi、Norio Shibata
DOI:10.1002/adsc.201100410
日期:2011.11
The organocatalytic enantioselective decarboxylative addition of malonic acids half thioesters to isatins using a squaramide catalyst afforded the products with high enantioselectivity. These products are key intermediates in the synthesis of 3-substituted 3-hydroxy-2-oxindole derivatives. The first enantioselective synthesis of (−)-flustraminol B has been accomplished.
使用方酰胺催化剂将丙二酸半硫酯的有机催化对映选择性脱羧加成到靛红中,得到具有高对映选择性的产物。这些产物是3-取代的3-羟基-2-羟吲哚衍生物的合成中的关键中间体。(-)-氟雌醇B的第一个对映选择性合成已经完成。