Curtius Rearrangement of ω-Azido Acid Chlorides: Access to the Corresponding ω-Azido Substituted Amines and Carbamates, Useful Building Blocks for Polyamine Syntheses
作者:Mostafa Khoukhi、Michel Vaultier、Aziza Benalil、Bertrand Carboni
DOI:10.1055/s-1996-4438
日期:1996.4
Treatment of Ï-azido acid chlorides with trimethylsilyl azide affords Ï-azido isocyanates which can be easily converted in good yields to the corresponding Ï-azidoamines or Ï-azidocarbamates. 1,3- and 1,4-Diamine dihydrochlorides can then be prepared by catalytic hydrogenation or reductive alkylation with an organodichloroborane.
用三甲基硅叠氮化物处理 Ï-azido 酸氯化物,可得到 Ï-azido 异氰酸酯,这些异氰酸酯很容易以良好的产率转化成相应的 Ï-azidoamines 或 Ï-azidocarbamates。然后,通过催化氢化或有机二氯硼烷还原烷基化,可制备 1,3-和 1,4-二胺二氢氯化物。