作者:Ken Narita、Naohiro Shirai、Yoshiro Sato
DOI:10.1021/jo962226j
日期:1997.4.1
16A,B, and 24A,B were generated by fluoride ion-induced desilylation, and their rearrangement was investigated. Type A ylides gave [2,3] sigmatropic rearrangement products (isotoluenes) 11, 17, 18, and 27, while type B ylides gave Stevens rearrangement products 8, 20, and 29 via radical-cleavage and -recombination pathways.
2-甲基-2-[((三甲基甲硅烷基)甲基] -2,3,4,5,6,7-六氢-1H-2-苯甲唑鎓碘化物(9),2-甲基-2-[((三甲基甲硅烷基)甲基]- 1,2,3,4,5,6-六氢-2-碘化苄唑鎓碘化物(15)和2-甲基-2-[[(三甲基甲硅烷基)甲基] -2,3,4,5-四氢-1H-2-碘化苯并enza庚啶(23)在室温下以两种稳定的构象异构体(A型和B型)的混合物形式存在于非质子溶剂中。N-甲基化物10A,B,16A,B和24A,B的相应构象异构体是通过氟离子诱导的甲硅烷基化反应生成的,并对其重排进行了研究。A型伊利德通过自由基裂解和重组途径产生[2,3]σ重排产物(异甲苯)11、17、18和27,而B型伊利德给出了Stevens重排产物8、20和29。