Stereochemical and Steric Effects in Nucleophilic Substitution of α-Halo Ketones
作者:J. William Thorpe、John Warkentin
DOI:10.1139/v73-137
日期:1973.3.15
interaction between nucleophile and carbonyl carbon (bridging) for reaction of conformation-ally-mobile systems. Conformationally-fixed systems, on the other hand, may be affected by such factors. trans,-2-Chloro-4-t-butylcyclohexanone is 61-fold more reactive than the cis-isomer, in the SN2 reaction with acetate. Activation parameters support the conclusion that only those α-haloketones which are stereochemically