Symmetrische alkene über episulfone aus primären sulfonylchloriden
作者:Günter Opitz、Thomas Ehlis、Karlheinz Rieth
DOI:10.1016/s0040-4039(00)99182-2
日期:——
Primary sulfonyl chlorides RCH2SO2Cl(R= Alk or Ar) react with triethylamine in acetonitrile solution at −40°C to give mixtures of cis- and trans-2,3-disubstituted thiirane-1,1-dioxides which can be thermolyzed to the corresponding Z- and E-alkenes.
伯磺酰氯RCH 2 SO 2 Cl(R = Alk或Ar)在乙腈溶液中于-40°C与三乙胺反应,制得顺式和反式-2,3-二取代的噻喃-1,1-二氧化物的混合物,可以是热解为相应的Z和E烯烃。
Die reaktion von 1.1-Thiirandioxiden mit metallorganischen verbindungen
作者:E. Vilsmaier、R. Tropitzsch、O. Vostrowsky
DOI:10.1016/s0040-4039(01)92064-7
日期:1974.1
First Examples of Episulfone Substitution Reactions via .alpha.-Sulfonyl Carbanion Intermediates
作者:Adriano B. Muccioli、Nigel S. Simpkins、Andrew Mortlock
DOI:10.1021/jo00097a012
日期:1994.9
Three-membered cyclic sulfones (episulfones) undergo substitution on treatment with base-electrophile mixtures, such as LDA-Me(3)SiCl and tBu-P4-phosphazene base-PhCHO, to give either substituted episulfones or the corresponding alkenes following loss of SO2.
Muccioli Adriano B., Simpkins Nigel S., Mortlock Andrew, J. Org. Chem, 59 (1994) N 18, S 5141-5143
作者:Muccioli Adriano B., Simpkins Nigel S., Mortlock Andrew
DOI:——
日期:——
Novel Episulfone Substitution and Ring-Opening Reactions via α-Sulfonyl Carbanion Intermediates
作者:Nigel S. Simpkins
DOI:10.1080/10426509708545519
日期:1997.1.1
Three-membered cyclic sulfones undergo substitution on treatment with baseelectrophile mixtures, such as LDA-Me3SiCl and tBu-P4-phosphazene base-PhCHO, to give either substituted episulfones or the corresponding alkenes following loss of SO2. In the absence of Me3SiCl, reaction of episulfones with LDA results in ring-opening to give alkenyl sulfinate intermediates, which can be alkylated to give (E)-alkenyl