Unexpected double benzylation of acetophenone under phase transfer catalysis conditions. Acidity or π−π interaction effect?
作者:Enrique Díez-Barra、Antonio de la Hoz、André Loupy、Alfonso Martínez-González、Víctor Martínez-Merino、Sonia Merino、Renée Paugam、Prado Sánchez-Verdú、Jean Sansoulet、José Torres
DOI:10.1016/s0040-4020(97)00089-6
日期:1997.3
A pi-pi interaction in the transition state of the benzylation of 1,3-diphenyl-1-propanone, the monobenzylation product of acetophenone, is proposed according to chemical, kinetic and theoretical approaches. Evidence for the existence of this kind of interaction in a transition state has been provided for the first time. The results obtained cannot be explained solely by the increased acidity but by considering the existence of a pi-pi interaction. (C) 1997 Elsevier Science Ltd.
Tribenzylmethane
作者:G. Albert Hill、Mervyn H. Little、Stephen Wray、Roger J. Trimbey
DOI:10.1021/ja01319a045
日期:1934.4
The Omega-Benzyl Derivatives of Acetophenone and their Reduction Products