Microwave‐Assisted PEG‐400 Medaited Synthesis of 4,5‐dihydro‐1H‐benzo[g]indazole Derivatives: An Enaminone Approach

Author:

Padder Ashiq Hussain1,Bhat Mohammad Yaqoob1,Prakash Rao H. Surya2,Gupta Raman3,Ahmed Qazi Naveed1ORCID

Affiliation:

1. Natural Product and Medicinal Chemistry Division CSIR-I ndian Institute of Integrative Medicine Jammu 180001 India

2. Department of Chemistry Pondicherry University Puducherry 605 014 India

3. Department of Chemistry Govt. College of Engineering and Technology Jammu India

Abstract

AbstractA simple, rapid and conceptually new efficient protocol for the synthesis of 4,5‐dihydro‐1H‐benzo[g]indazole derivatives from novel enaminones prepared via Blaise reaction under catalyst free conditions is reported involving polyethylene glycol (PEG‐400) as an efficient recyclable medium without using any organic co‐solvent or additive by Microwave irridation with 91–95 % yields without chromatography.

Funder

Department of Chemistry, University of York

Publisher

Wiley

Subject

General Chemistry

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