Efficient Synthesis of Unsymmetrical Dibenzothiophenes by Acid-Mediated Intramolecular Cyclization of Biaryl Methyl Sulfoxides
作者:Vrajesh B. Pandya、Mukul R. Jain、Balaji V. Chaugule、Jigar S. Patel、Bhavesh M. Parmar、Jignesh K. Joshi、Pankaj R. Patel
DOI:10.1080/00397911.2010.525777
日期:2012.2.15
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.