Reaction of methyl esters of substituted 2-oxochromene-3-carboxylic acids with zinc enolates formed from 1-aryl-2-bromoalkanones
作者:V. V. Shchepin、A. E. Korzun、S. N. Shurov、M. I. Vakhrin、N. Yu. Russkikh
DOI:10.1007/s11176-005-0022-7
日期:2004.9
Zinc enolates formed from 1-aryl-2-bromoalkanones react with methyl esters of substituted 2-oxochromene-3-carboxylic acids to give methyl esters of 6-bromo- or 6,8-dibromo-4-(2-aryl-2-oxo-1-R- ethyl)-2-oxochromane-3-carboxylic acids as mixtures of two diastereomers.