Add time:07/29/2019         Source:sciencedirect.com

Acrylamides are fundamental Michael acceptors which have been used profoundly in synthetic, medicinal and polymer chemistry. However, due to their lower reactivity they have been least used in Morita-Baylis-Hillman (MBH) reaction and have been out of its vinylogus version Rauhut Currier (RC) reaction. Herein, use of acrylamide in RC reaction is being presented. Intramolecular RC reaction followed by [1,3]-H shift led to the synthesis of quinolone moiety. DABCO catalyzed IRC reaction of acrylamide at 80 °C in presence of water, was found to work on a number of precursors. En route chemo selective, gram scale method for ambiphilic, versatile precursor 2-amino chalcone is also reported. Chemoselective and economical conversion of 2-nitro chalcone to 2-aryl quinoline has also been developed.

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