Azidotrimethylsilane-mediated Schmidt rearrangement of 2-aryl-1,2,3,4-tetrahydro-1-methylsulfonyl-4-quinolones: non-regioselectivity of carbon migration
作者:Malose J. Mphahlele
DOI:10.1039/a906449d
日期:——
Azidotrimethylsilane-mediated Schmidt rearrangement of 2-aryl-1-methylsulfonyl-1,2,3,4-tetrahydro-4-quinolones in trifluoroacetic acid was investigated. In contrast to the corresponding 2-aryl-1,2,3,4-tetrahydro-4-quinolone precursors, the N-methylsulfonyl derivatives displayed non-regioselectivity of carbon migration during nitrogen insertion affording the isomeric ring-expanded derivatives via alkyl and aryl migration.
研究了叠氮化三甲基硅烷介导的 2-芳基-1-甲磺酰基-1,2,3,4-四氢-4-喹啉酮在三氟乙酸中的施密特重排反应。与相应的 2-芳基-1,2,3,4-四氢-4-喹啉酮前体相比,N-甲基磺酰基衍生物在氮插入过程中显示出碳迁移的非区域选择性,并通过烷基和芳基迁移产生异构环扩展衍生物。