Intermolecular Ene Reactions Utilizing Oxazolones and Enol Ethers
摘要:
We report herein an intermolecular ene reaction using oxazolones with enol ethers which results in the formation of novel quaternary amino esters in near quantitative yields. The overall reaction transformation closely resembles an intermolecular version of the Conia-ene reaction. The reactions are uncatalyzed and occur under very mild conditions.
Benzotetramisole-Catalyzed Dynamic Kinetic Resolution of Azlactones
作者:Xing Yang、Guojian Lu、Vladimir B. Birman
DOI:10.1021/ol902969j
日期:2010.2.19
Enantioselective acyl transfer catalyst benzotetramisole (BTM) has been found to promote dynamic kinetic resolution of azlactones providing di(1-naphthyl)methyl esters of alpha-amino acids with up to 96% ee.