期刊
ORGANOMETALLICS
卷 29, 期 3, 页码 536-542出版社
AMER CHEMICAL SOC
DOI: 10.1021/om900829t
关键词
-
资金
- Nangyang Technological University
Organopalladium complexes containing ortho-metalated (R)-(1-(dimethylamino)ethyl)napthalene and (R)-[1-(1-(dimethylamino)-2,2-dimethylpropyl]-2,5-dimethylbenzene as the chiral auxiliaries were used to promote the asymmetric hydrophosphination reactions between diphenylphosphine and ester- and keto-functionalized allenes in high regio- and stereoselectivites under mild conditions. The hydrophosphination reactions generated the 1,2-diphosphine ligands with chirality residing on the carbon backbone as bidentate yields in configurationally pure forms and characterized by means of single-crystal X-ray crystallography. The chiral auxiliaries could be removed chemoselectively by treatment with concentrated hydrochloric acid to form the corresponding optically pure neutral dichloro complexes. Subsequently, the dichloro complexes underwent ligand displacement with acqueous cyanide to generate their corresponding optically pure diphosphine ligands in high yields.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据