The E1cb route for ester hydrolysis; volumes of activation as an additional criterion of mechanism
作者:Neil S. Isaacs、Tariq S. Najem
DOI:10.1039/p29880000557
日期:——
of esters which possess an acidic proton at the α or vinylogous position can, in principle, hydrolyse by the E1cb route via a ketenoid intermediate. To the kinetic evidence for such a mechanism in the hydrolyses of 4-hydroxybenzoates, malonates, acetoacetates and fluorenecarboxylates is now added the further criterion of volumes of activation. Values of ΔV‡ for reactions proceeding by the E1cb route