Stereochemical differences in the michael addition of phenylacetic acid esters and dialkyl amides to methyl cinnamate or methyl crotonate
作者:T. S. Gospodova、Y. N. Stefanovsky
DOI:10.1007/bf00818166
日期:1994.2
The stereochemistry of the conjugate addition of phenylacetic acid esters and dialkylamides to methyl crotonate is studied. The stereochemical results are compared with these previously obtained for the addition to methyl cinnamate. The differences observed are explained in terms of cyclic transition states with decreasing of the sterical interactions as a result of replacement of a phenyl group by methyl in position 2 of the 1,2-diphenylpropanic skeleton.