A process for the preparation of aryl hydrazines and indazoles by reacting organometallic regents with azodicarboxylates.
通过将有机金属试剂与偶氮二羧酸酯反应制备芳基肼和吲哚的方法。
Sc(OTf)<sub>3</sub>Catalyzed Electrophilic Amination of Arenes: An Expeditious Synthesis of Aryl Hydrazides
作者:J. S. Yadav、B. V. S. Reddy、G. Veerendhar、R. Srinivasa Rao、K. Nagaiah
DOI:10.1246/cl.2002.318
日期:2002.3
Arenes react smoothly with diethyl azodicarboxylate in the presence of a catalytic amount of scandium triflate in dichloromethane at ambient temperature to afford the corresponding aryl hydrazides in high yields with high regioselectivity.
InCl3-SiO2 Catalyzed Electrophilic Amination of Arenes: A Facile and Rapid Synthesis of Aryl Hydrazides
作者:J. S. Yadav、B. V. Subba Reddy、G. Mahesh Kumar、C. Madan
DOI:10.1055/s-2001-18075
日期:——
Electron-richarenes undergo electrophilic amination with diethyl azodicarboxylate on the surface of silica gel impregnated with indium trichloride in solvent-free conditions to afford para-substituted aryl hydrazides. Improved yields and enhanced rates are obtained by employing microwave irradiation.