N-未取代的 S,S-二苯基亚磺酰亚胺与醛或酮在硼烷-吡啶络合物和乙酸的存在下在苯中于 40 °C 反应得到相应的 N-烷基-S,S-二苯基亚磺酰亚胺。由于该反应不形成 N,N-二烷基化氨基锍盐,因此该方法提供了一种方便的 N-单烷基亚磺酰亚胺制备方法,而无需由于其相似的 R f 值而通过柱色谱法难以分离产物。讨论了形成的机制。
Syntheses and nucleophilic reactions of N-alkyldiphenylsulfilimines
作者:Y. Tamura、H. Matsushima、M. Ikeda、K. Sumoto
DOI:10.1016/0040-4020(76)80058-0
日期:1976.1
N-Alkyldiphenylsulfilimines, Ph2S+N−R, were prepared by treating diphenylsulfilimine with alkyl halides in refluxing chloroform. Reactions of N-benzyldiphenylsulfilimine with activated olefins and acetylenes were investigated and found to give products consistent with nuclephilic attack of −NCH2Ph followed by SN bond cleavage with or without hydrogen transfer. In general, the reaction conditions had
N-烷基二苯基亚砜亚胺,Ph 2 S + N - R,是通过在回流氯仿中用烷基卤化物处理二苯基亚砜亚胺来制备的。用活化的烯烃和炔烃的N- benzyldiphenylsulfilimine的反应进行了调查,发现得到的产品用的亲核攻击一致- NCH 2博士接着SN键裂解具有或不具有氢转移。通常,反应条件对产物分布具有显着影响。