M. Aurell, M. Bañuls, R. Mestres
Jan 15, 1999
Citations
0
Influential Citations
11
Citations
Journal
Tetrahedron
Abstract
Abstract Reaction of tert -butyllithium with p - and m -substituted cinnamic acids at low temperature affords mixtures of 1,4- and 1,3-addition products, whose composition depend on the nature of the substituents. Electron-donating and electron-withdrawing groups favour 1,4- and 1,3-additions, respectively. Linear correlations are obtained with electronic effect and with radical substituent constants.