A reinvestigation of the reaction of allylsilanes with N-phenyltriazolinedione: stereoselective synthesis of substituted urazoles by [3+2] cycloaddition
作者:Raudra T. Dey、Sk. Anwarul Haque、Anindya Hazra、Sankar Basak、Tarun K. Sarkar
DOI:10.1016/j.tetlet.2007.07.126
日期:2007.9
A stereoselective synthesis of hydroxy substituted urazoles of potential biological significance has been developed via the [3+2] annulation of α-substituted allylic silanes with N-phenyltriazolinedione. The need for complete blocking of the α-CH2 group of allylsilanes for successful [3+2] annulation, as reported previously, is found to be unnecessary.