Synthesis of 2H-Indazoles via Lewis Acid Promoted Cyclization of 2-(Phenylazo)benzonitriles
摘要:
Lewis-acid promoted "coarctate" cyclization of 10 2-(phenylazo) benzonitrile derivatives furnishes the isoindazole ring system in ca. 65-95% yield. A plausible mechanism for this unusual transformation is proposed.
Synthesis of 2H-Indazoles via Lewis Acid Promoted Cyclization of 2-(Phenylazo)benzonitriles
摘要:
Lewis-acid promoted "coarctate" cyclization of 10 2-(phenylazo) benzonitrile derivatives furnishes the isoindazole ring system in ca. 65-95% yield. A plausible mechanism for this unusual transformation is proposed.
Synthesis of 2<i>H</i>-Indazoles via Lewis Acid Promoted Cyclization of 2-(Phenylazo)benzonitriles
作者:Laura D. Shirtcliff、Jazmin Rivers、Michael M. Haley
DOI:10.1021/jo060965m
日期:2006.8.1
Lewis-acid promoted "coarctate" cyclization of 10 2-(phenylazo) benzonitrile derivatives furnishes the isoindazole ring system in ca. 65-95% yield. A plausible mechanism for this unusual transformation is proposed.