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Title: Citric acid as a mild and inexpensive organocatalyst for synthesis of tetrahydrobenzo[a] xanthen-11-ones and dibenzo[a,j] xanthenes under solvent-free condition
Authors: Pawar, P B
Jadhav, S D
Deshmukh, M B
Patil, Suresh
Keywords: Citric acid;Solvent free condition;xanthenes
Issue Date: Sep-2014
Publisher: NISCAIR-CSIR, India
Abstract: A simple and efficient protocol has been developed for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a] xanthen-11-one derivatives, I employing a one-pot three-component reaction of aldehydes, 2-naphthol and dimedone in the presence of citric acid under solvent-free condition at 120°C. The protocol has been also extended for the synthesis of 14-aryl-14H-dibenzo [a.j] xanthenes, II by employing 1:2 proportion of aldehyde and 2-naphthol, to afford excellent yield in short reaction time.
Page(s): 1185-1193
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-B Vol.53B(09) [September 2014]

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