Strategic applications of Baylis–Hillman adducts to general syntheses of 3-nitroazetidines
作者:Ankita Rai、Lal Dhar S. Yadav
DOI:10.1039/c1ob06274c
日期:——
A novel one-pothighly diastereoselective synthesis of substituted 3-nitroazetidines via an anionic domino process is described. The synthesis involves a high yielding annulation of Baylis–Hillman alcohols and their aldehydes with either N-aryl/tosylphosphoramidates or N-aryl/tosylphosphoramidates in combination with a task-specificionicliquid [bmim][X–Y] to afford the corresponding 1,2,3-tri- and
In this paper, an elegant synthesis of 1,2,3-triazole derivatives via domino [3 + 2] azide cycloaddition and denitration reaction sequence under catalyst free conditions has been described. Treatment of Baylis–Hillmanadducts and their cyclic derivatives from nitroolefins with sodium azide in the absence of catalyst smoothly afforded the 1,2,3-triazole derivatives in excellent yields.