Efficient Synthesis of Unsymmetrical Dibenzothiophenes by Acid-Mediated Intramolecular Cyclization of Biaryl Methyl Sulfoxides

…, JS Patel, BM Parmar, JK Joshi, PR Patel

Index: Pandya, Vrajesh B.; Jain, Mukul R.; Chaugule, Balaji V.; Patel, Jigar S.; Parmar, Bhavesh M.; Joshi, Jignesh K.; Patel, Pankaj R. Synthetic Communications, 2012 , vol. 42, # 4 p. 497 - 505

Full Text: HTML

Citation Number: 11

Abstract

A convenient and high-yielding synthesis of unsymmetrical dibenzothiophenes has been achieved by an acid-mediated ring closure of the biphenyl ring having a sulfoxide substituent at the ortho position. Various functional groups are well tolerated in this methodology. ... A convenient and high-yielding synthesis of unsymmetrical dibenzothiophenes has been achieved by an acid-mediated ring closure of the biphenyl ring having a sulfoxide substituent at the ortho ...