作者:Scott J. Greenfield、Anton Agarkov、Scott R. Gilbertson
DOI:10.1021/ol035097j
日期:2003.8.1
[reaction: see text] Work toward the development of a bisphosphine ligand system for the palladium-catalyzed addition to cyclic allyl acetates is reported. A parallel approach using phosphine-containing amino acids in conjunction with natural amino acids was used to develop a selective ligand system. The ligand system was examined while attached to the polymer support as well as in solution. Selectivites
[反应:见正文]据报道,人们正在努力开发双膦配体体系,用于钯催化环乙酸烯丙酯的加成反应。使用含膦氨基酸和天然氨基酸的平行方法开发了选择性配体系统。在连接到聚合物载体以及溶液中的同时检查配体体系。据报道,具有困难的底物3-乙酰氧基环戊烯的ee高达95%ee。