Cyclopropanes from reactions of ethyl dimethylsulfuranylideneacetate with .alpha.,.beta.-unsaturated compounds
作者:George B. Payne
DOI:10.1021/jo01286a017
日期:1967.11
Sulfur ylides. Communication 1. Cyclopropanation of ?,?-unsaturated ketones with ethyl(dimethyl-sulfuranylidene)acetate generated in the presence of phase-transfer catalysts
作者:G. A. Tolstikov、F. Z. Galin、V. N. Iskandarova、L. M. Khalilov、A. A. Panasenko
DOI:10.1007/bf00963246
日期:1985.10
SYRIER, J. L. M.
作者:SYRIER, J. L. M.
DOI:——
日期:——
MULJIANI, Z.;GADRE, SMITA;JOSHI, VIJAYA;MITRA, R. B., SYNTH. COMMUN., 18,(1988) N 2, 135-140
作者:MULJIANI, Z.、GADRE, SMITA、JOSHI, VIJAYA、MITRA, R. B.
DOI:——
日期:——
Catalytic cyclopropanation of electron deficient alkenes mediated by chiral and achiral sulfides: scope and limitations in reactions involving phenyldiazomethane and ethyl diazoacetate
作者:Varinder K. Aggarwal、Helen W. Smith、George Hynd、Ray V. H. Jones、Robin Fieldhouse、Sharon E. Spey
DOI:10.1039/b004367m
日期:——
Phenyldiazomethane reacts with electron deficient alkenes in the presence of catalytic amounts of transition metal catalyst [Rh2(OAc)4 was better than Cu(acac)2] and catalytic amounts of sulfide to give cyclopropanes. Pentamethylene sulfide was found to be superior to tetrahydrothiophene and the optimum solvent was toluene. Under these optimised conditions a range of enones were cyclopropanated in