Base-induced Generation of Aryl(1,2,3-triazol-1-yl)carbenes from 1-[(N-Phenylsulfonyl)benzohydrazonoyl]-1,2,3-triazoles and Their Ring Enlargement to 3-Aryl-1,2,4-triazines
作者:Yuumo Tanaka、Shuji Oda、Suketaka Ito、Akikazu Kakehi
DOI:10.3987/com-04-10234
日期:——
The Bamford-Stevens reactions of 1-[N-(phenylsulfonyl)-benzohydrazonoyl]-1,2,3-triazole derivatives, readily available from the 1,3-dipolar cycloadditions of N-(phenylsulfonyl)benzohydrazonoyl azides with enamines, were examined and the transformation from aryl(1,2,3-triazol-1-yl)carbene intermediates to the corresponding 3-aryl-1,2,4-triazine derivatives was first observed.
1-[N-(苯磺酰基)-苯并腙酰基]-1,2,3-三唑衍生物的 Bamford-Stevens 反应,很容易从 N-(苯磺酰基)苯并腙酰基叠氮化物与烯胺的 1,3-偶极环加成反应中获得。并且首先观察到芳基(1,2,3-三唑-1-基)卡宾中间体向相应的3-芳基-1,2,4-三嗪衍生物的转化。