Palladium-catalyzed construction of amino acid derivatives possessing vicinal chiral quaternary and tertiary carbon centers at the α and β positions
作者:Daiji Ikeda、Motoi Kawatsura、Junichi Uenishi
DOI:10.1016/j.tetlet.2005.07.139
日期:2005.9
The palladium catalyzed regio- and diastereo-selective allylic alkylation of (R)-2-acetoxy-4-aryl-3-butene with N-(diphenylmethylidene)glycinate and N-(diphenylmethylidene)alaninate occurred. The stereochemistry was controlled by the use of o-(diphenylphosphino)carboxylic acid, and produced new amino acid derivatives possessing vicinal chiral quaternary and tertiary carbon centers at the α and β positions
钯催化了(R)-2-乙酰氧基-4-芳基-3-丁烯与N-(二苯基亚甲基)甘氨酸和N-(二苯基亚甲基)丙氨酸的区域和非对映选择性烯丙基烷基化。立体化学通过使用邻-(二苯基膦基)羧酸来控制,并产生了在α和β位置具有邻位手性季碳和叔碳中心的新氨基酸衍生物。