Rh(iii)-Catalyzed synthesis of pyrazolo[1,2-a]cinnolines from pyrazolidinones and diazo compounds†,10.1039/C8QO00209F

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Rh(iii)-Catalyzed synthesis of pyrazolo[1,2-a]cinnolines from pyrazolidinones and diazo compounds†

Panpan Li,Xiaoying Xu,Jiayi Chen,Hequan Yao,Aijun Lin

Organic Chemistry Frontiers Pub Date : 03/28/2018 00:00:00 , DOI:10.1039/C8QO00209F

Abstract

Rhodium(III)-catalyzed redox-neutral annulation of pyrazolidinones with diazo compounds has been described. This reaction provides a straightforward platform to access various pyrazolo[1,2-a]cinnolines, which have potential medicinal value, under mild reaction conditions, with good regioselectivity and high functional group tolerability.