Barluenga, Jose; Alonso, Jorge; Rodriguez, Felix, Angewandte Chemie, International Edition, 2000, vol. 39, # 14, p. X2460-2462
作者:Barluenga, Jose、Alonso, Jorge、Rodriguez, Felix、Fananas, Francisco J.
DOI:——
日期:——
Solvent-Controlled Diastereoselective Synthesis of Cyclopentane Derivatives by a [3 + 2] Cyclization Reaction of α,β-Disubstituted (Alkenyl)(methoxy)carbene Complexes with Methyl Ketone Lithium Enolates
作者:José Barluenga、Jorge Alonso、Francisco J. Fañanás
DOI:10.1021/ja029170x
日期:2003.3.1
11 with methyl ketone lithium enolates 2 leads to the corresponding five-membered carbocyclic compounds 4 or diast-4 and 12. The influence of the solvent and/or cosolvent (PMDTA), which turned out to be crucial to direct the reaction to 4 or diast-4, is studied, and a tentative mechanism according to these facts is proposed. In addition, the reaction of carbene complex 1a with alkynyl methyl ketone