Efficient Synthesis of Unsymmetrical Dibenzothiophenes by Acid-Mediated Intramolecular Cyclization of Biaryl Methyl Sulfoxides
- 15 February 2012
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 42 (4) , 497-505
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.Keywords
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