Intramolecular reactions. Part IX. Stereochemistry and mechanism of the rearrangement of acetylenic esters of sulphinic and sulphenic acids to allenes
作者:Geraldine Smith、C. J. M. Stirling
DOI:10.1039/j39710001530
日期:——
Sulphinic esters of prop-2-ynyl alcohols rearrange thermally to allenyl sulphones. Evidence for a cyclic mechanism for the rearrangement is discussed. (+)-(R)-1-Methylprop-2-ynyl toluene-p-sulphinate rearranges to (–)-buta-1,2-dienyl p-tolyl sulphone, whose absolute configuration, predicted on the basis of a cyclic mechanism for the rearrangement, agrees with that calculated from the polarisability
Stereochemical studies of the palladium-catalyzed rearrangements of chiral 2-alkynyl sulfinates into chiral allenyl sulfones
作者:Kunio Hiroi、Fumiko Kato
DOI:10.1016/s0040-4020(00)01111-x
日期:2001.2
determined. The conversion rate was measured by the HPLC analysis in accordance with the elapse of the reaction time, and the rather marked difference of the rate was observed between the diastereomeric sulfinates. A novel mechanism for this transformation with palladium catalysts is proposed.
Studies on the addition of allyl oxides to sulfonylallenes. Preparation of highly substituted allyl vinyl ethers for carbanionic Claisen rearrangements
作者:Scott E. Denmark、Michael A. Harmata、Kathleen S. White
DOI:10.1021/jo00227a017
日期:1987.9
Cinquini,M. et al., Journal of the Chemical Society. Perkin transactions I, 1978, p. 247 - 249
作者:Cinquini,M. et al.
DOI:——
日期:——
SILVER-CATALYZED REARRANGEMENT OF PROPARGYLIC SULFINATES: SYNTHESIS OF ALLENIC SULFONES