Rh(III)‐Catalyzed C−H Annulation and Spirolactonization of 2‐Aryl‐1H‐benzo[d]imidazoles with 4‐Hydroxy‐2‐alkynoates via C−H bond activation

Author:

Siva Sankaram G.12,Sahoo Tanmoy12,Madhu Myadari1,Sridhar B.3,Subba Reddy B. V.1

Affiliation:

1. Fluoro &Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India

2. Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India

3. Laboratory of X-ray Crystallography CSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India

Abstract

AbstractRh(III) catalyzed C−H bond annulation and spirolactonization of 2‐aryl‐1H‐benzo[d]imidazoles with 4‐hydroxy‐2‐alkynoates has been developed for the first time for the synthesis of a diverse range of 2’,2’‐dimethyl‐2’H‐spiro[benzo[4,5]imidazo[2,1‐a]isoindole and fused dimethylbenzo[4,5]imidazo[2,1‐a]furo[3,4‐c]isoquinoline derivatives. This method is a versatile and atom‐economical to produce polycyclic frameworks in a single‐step.

Publisher

Wiley

Subject

Organic Chemistry

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