SYNTHESIS, RESOLUTION AND ASSIGNMENT OF ABSOLUTE-CONFIGURATION OF 2-(ALPHA-HYDROXY)ARYL ACRYLATE ESTERS

被引:29
作者
DREWES, SE
EMSLIE, ND
FIELD, JS
KHAN, AA
RAMESAR, N
机构
[1] Department of Chemistry, University of Natal, Pietermaritzburg
关键词
D O I
10.1016/S0957-4166(00)80204-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
(-) (R,R)-2-Amino-1-(4-nitrophenyl)propan-1,3-diol 3 has been used to resolve racemic 3-hydroxy-2-methylene-3-phenylpropanoic acid 1a. Conversion of the laevorotatory enantiomer into anti and syn methyl 3-hydroxy-2-methyl-3-phenylpropanoate, 2a and 2b respectively, was achieved with Pd/H2. Correlation of the specific rotations of 2a and 2b with isomers of known configuration established the absolute configuration of 4a as R. This was confirmed independently by X-ray crystallography.
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页码:255 / 260
页数:6
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