A PRACTICAL ENANTIOSELECTIVE SYNTHESIS OF ALPHA,ALPHA-DIARYL-2-PYRROLIDINEMETHANOL - PREPARATION AND CHEMISTRY OF THE CORRESPONDING OXAZABOROLIDINES

被引:238
作者
MATHRE, DJ
JONES, TK
XAVIER, LC
BLACKLOCK, TJ
REAMER, RA
MOHAN, JJ
JONES, ETT
HOOGSTEEN, K
BAUM, MW
GRABOWSKI, EJJ
机构
[1] Merck Sharp & Dohme Research Laboratories, Department of Process Research and Development, Rahway
关键词
D O I
10.1021/jo00002a049
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A practical two-step enantioselective synthesis of alpha,alpha-diaryl-2-pyrrolidinemethanols (1) from proline, based on the addition of aryl Grignard reagents to proline-N-carboxanhydride (3), is reported. An investigation into the chemistry of the corresponding B-alkyl- and B-aryloxazaborolidines (2) led to the development of a reliable procedure for their preparation.
引用
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页码:751 / 762
页数:12
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