Preparation of Polyfunctional Indazoles and Heteroarylazo Compounds Using Highly Functionalized Zinc Reagents
作者:Benjamin Haag、Zhihua Peng、Paul Knochel
DOI:10.1021/ol901585k
日期:2009.10.1
available 2-chloromethylarylzinc reagents react with functionalized aryldiazoniumtetrafluoroborates providing polyfunctional indazoles. Selective metalations of these 2-aryl-2H-indazoles afford new polycyclic aromatics. The performance of a chemoselective addition of diheteroarylzincs to aryldiazonium salts allows an efficient preparation of new heterocyclic azo compounds.