作者
Jianyou Mao, Feipeng Liu, Min Wang, Lin Wu, Bing Zheng, Shangzhong Liu, Jiangchun Zhong, Qinghua Bian, Patrick J Walsh
发表日期
2014/12/17
期刊
Journal of the American Chemical Society
卷号
136
期号
50
页码范围
17662-17668
出版商
American Chemical Society
简介
The first cobalt-catalyzed asymmetric Kumada cross-coupling with high enantioselectivity has been developed. The reaction affords a unique strategy for the enantioselective arylation of α-bromo esters catalyzed by a cobalt–bisoxazoline complex. A variety of chiral α-arylalkanoic esters were prepared in excellent enantioselectivity and yield (up to 97% ee and 96% yield). The arylated products were transformed into α-arylcarboxylic acids and primary alcohols without erosion of ee. The new enantioenriched α-arylpropionic esters synthesized herein are potentially useful in the development of nonsteroidal anti-inflammatory drugs. This method was conducted on gram-scale and applied to the synthesis of highly enantioenriched (S)-fenoprofen and (S)-ar-turmerone.
引用总数
2015201620172018201920202021202220232024519916193222201211
学术搜索中的文章