2,3-Sigmatropic Rearrangement of Sulfonium Ylides Generated by Addition of Samarium Carbenoids
作者:Munetaka Kunishima、Daisuke Nakata、Chikako Goto、Kazuhito Hioki、Shohei Tani
DOI:10.1055/s-1998-1979
日期:1998.12
Allylic sulfides are transformed into homoallylic sulfides with complete allylic inversion by treatment with SmI2 and CH2I2 in THF. The reaction will involve allylic sulfonium ylides as an intermediate, which undergoes 2,3-rearrangement.
Preparation, Solid-State Structure, and Synthetic Applications of Isolable and Storable Haloalkylzinc Reagents
作者:André B. Charette、Jean-François Marcoux、Carmela Molinaro、André Beauchemin、Christian Brochu、Élise Isabel
DOI:10.1021/ja994371v
日期:2000.5.1
A method for methylidenation and ethylidenation of an allylic thioether leading to a 2,3-sigma-tropic rearrangement. Failure of the Simmons-Smith reaction in the presence of thioethers
作者:Zenyk Kosarych、Theodore Cohen
DOI:10.1016/s0040-4039(00)87522-x
日期:1982.1
KOSARYCH, Z.;COHEN, T., TETRAHEDRON LETT., 1982, 23, N 30, 3019-3022
作者:KOSARYCH, Z.、COHEN, T.
DOI:——
日期:——
Preparation of a Storable Zinc Carbenoid Species and Its Application in Cyclopropanation, Chain Extension, and [2,3]-Sigmatropic Rearrangement Reactions
作者:Arnaud Voituriez、Lucie E. Zimmer、André B. Charette
DOI:10.1021/jo902618e
日期:2010.2.19
The formation of a new phosphate carbenoid (n-BuO)2P(O)OZnCH2I and its application in organozinc-mediated reactions is described. This carbenoid undergoes very slow degradation in solution and can be stored for several weeks at −20 °C. Its reactivity was tested with many representative alkenes and was determined to be a powerful cyclopropanating reagent, giving the corresponding cyclopropanes in 72−99%