Origin of Enantioselectivity in CF3−PIP-Catalyzed Kinetic Resolution of Secondary Benzylic Alcohols
摘要:
Computational studies provide support for the involvement of intermolecular pi-interactions in the chiral recognition of secondary benzylic alchols by the enantioselective acyl transfer catalyst CF(3)-PIP.
Origin of Enantioselectivity in CF3−PIP-Catalyzed Kinetic Resolution of Secondary Benzylic Alcohols
摘要:
Computational studies provide support for the involvement of intermolecular pi-interactions in the chiral recognition of secondary benzylic alchols by the enantioselective acyl transfer catalyst CF(3)-PIP.
Nonenzymatic kinetic resolution of racemic 2,2,2-trifluoro-1-aryl ethanol via enantioselective acylation
作者:Qing Xu、Hui Zhou、Xiaohong Geng、Peiran Chen
DOI:10.1016/j.tet.2009.01.058
日期:2009.3
Kineticresolution of a series of 2,2,2-trifluoro-1-aryl ethanol with (R)-benzotetramisole as the catalyst has been investigated. The result showed that when the aryl group in the substrate was a phenyl (or a phenyl substituted by an electron-donating group) or a naphthyl (an extended phenyl) group, the system could give an s value higher than 20. Preparative KR examples demonstrated the applicability