期刊
SYNLETT
卷 30, 期 5, 页码 557-562出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0037-1611701
关键词
enantioselective reaction; desymmetrization; axial chirality; biphenyls; lipase
资金
- Platform for Drug Discovery, Informatics, and Structural Life Science
- Private University Research Branding Project from the Ministry of Education, Culture, Sports, Science and Technology, Japan
Highly enantioselective desymmetrization of sigma-symmetric 3-substituted 2,6-dimethoxybiphenyl-2,6-diyl diacetate derivatives to the corresponding monoacetates was effected by using Rhizopus oryzae lipase (ROL) and porcine pancreatic lipase (PPL), despite the remoteness of the C(3) substituent from the acetate groups. ROL promoted hydrolysis of the pro- S acetates, irrespective of the type of C(3) substituent, whereas PPL promoted hydrolysis of the pro- R acetates, and selectivity was only attainable when the C(3) substituent was a polar group.
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