Elimination of benzotriazolyl group in N-(α-benzotriazol-1-ylalkyl)amides and N-(α-benzotriazol-1-ylalkyl)sulfonamides: their self-coupling and cross-coupling reactions with carbonyl compounds
作者:Xiaoxia Wang、Yongjun Liu、Yongmin Zhang
DOI:10.1016/j.tet.2003.08.039
日期:2003.10
The elimination of benzotriazolyl group from N-(α-benzotriazol-1-ylalkyl)amides and N-(α-benzotriazol-1-ylalkyl)sulfonamides are readily realized with samarium diiodide as a reducing agent. The resulting intermediates undergo a dimerization or cross-coupling reaction with carbonyl compounds, thus affording the corresponding dimers or α-hydroxyalkylated sulfonamides in moderate yields.
用二碘化sa作为还原剂容易地从N-(α-苯并三唑-1-基烷基)酰胺和N-(α-苯并三唑-1-基烷基)磺酰胺中消除苯并三唑基。所得中间体与羰基化合物进行二聚或交叉偶联反应,从而以中等收率得到相应的二聚体或α-羟烷基化磺酰胺。