Some substitution reactions at the phosphorus of 2,2,3,4,4-pentamethyl-phosphetans
作者:W. Hawes、S. Trippett
DOI:10.1039/j39690001465
日期:——
Nucleophilic substitutions at the phosphonium or phosphoryl centres of 2,2,3,4,4-pentamethylphosphetans proceed with retention of configuration at the phosphorus. 1-Aryl-2,2,3,4,4-pentamethylphosphetan oxides when treated with aryl-lithiums give aryl-(3-aryl-1,1,2,3,3-pentamethylpropyl)phosphine oxides. Additional evidence, involving deuterium labelling, is presented for the spirocyclohexa-1,4-diene
在2,2,3,4,4-五甲基膦基的phospho或磷酰基中心的亲核取代会保留磷的构型。当用芳基-锂处理时,1-芳基-2,2,3,4,4-五甲基氧化膦氧化物得到芳基-(3-芳基-1,1,2,3,3-五甲基丙基)膦氧化物。对于由1,2,2,3,4,4-六甲基苯基碘化碘进行碱水解得到的氧化物的螺环六-1,4-二烯结构(III),提供了涉及氘标记的其他证据。