A convenient synthesis of protected e-enynals via cross coupling of vinyltin acetals with bromoalkynes
作者:Isabelle Beaudet、Jean-Luc Parrain、Jean-Paul Quintard
DOI:10.1016/s0040-4039(00)92526-7
日期:1992.6
E-conjugated enynes bearing an acetal function on the allylic or the homoallylic position or/and on the propargylic or the homopropargylic position were conveniently obtained at room temperature in DMF via cross coupling of the corresponding vinyltins with 1-bromoalk-1-ynes in the or Pd(II) catalysts.