有机碲Ylide反应Ⅻ用碲Ylide合成双环丙烷衍生物

Synthesis of Derivatives of Biscyclopropane Via Telluronium Ylide

由相应的碲盐生成的某些碲ylide,能顺利地和1,4-双(3-取代苯基-3-酮-1-丙烯基)苯,1,5-二取代苯基-1,4-戊二烯-3-酮反应生成双环丙烷衍生物,反应具有高立体选择性,产率为61.8-88.8％。

Some Telluronium ylides, generated from the corresponding salts, react easily with 1 , 4 - bis(3 - substituted phenyl - 3 -oxo- 1 - propenyl)benzene and 1,5- disubstituted phenyl- 1,4-pentadien - 3 - one to afford derivatives of biscyclopropanes in 61. 8 - 88. 8% yield with high stereoselectivi ty.