Organic letters

Sequential Oxidative Transformation of Tetraarylethylenes to 9, 10-Diarylphenanthrenes and Dibenzo [g, p] chrysenes using DDQ as an Oxidant

TS Navale, K Thakur, R Rathore

Index: Navale, Tushar S.; Thakur, Khushabu; Rathore, Rajendra Organic Letters, 2011 , vol. 13, # 7 p. 1634 - 1637

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Citation Number: 64

Abstract

Tetraarylethylenes can be sequentially transformed into 9, 10-diarylphenanthrenes and dibenzo [g, p] chrysenes using 1 and 2 equiv of DDQ, respectively, in CH2Cl2 containing methanesulfonic acid, in excellent yields. Efficient access to substituted dibenzochrysenes from tetraarylethylenes establishes the versatility of this procedure over the existing multistep syntheses of dibenzochrysenes. Moreover, the ready regeneration of DDQ from ...