γ-Ethoxyallenylstannane was obtained by the reaction of 2-ethoxy-3-alkynenitrile or 1-ethoxy-1-(phenylthio)-2-alkyne with tributylstannyllithium in good yield. The reaction of 1,1-bis-(phenylthio)-2-alkyne with tributylstannylcopper(I) reagent gave γ-(phenylthio)allenylstannane which, in turn, was treated with acetal in the presence of TiCl4, to afford the propargyl sulfide derivative predominantly.
γ-
乙氧基乙炔基
锡烷是通过2-乙氧基-3-炔腈或1-乙氧基-1-(苯
硫基)-2-炔与
三丁基锡锂反应得到的,产率良好。1,1-双-(苯
硫基)-2-炔与三
丁基锡铜(I)试剂反应生成γ-(苯
硫基)
乙炔基
锡烷,后者在TiCl4存在下与
缩醛反应,主要生成炔丙基
硫醚衍
生物。