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Cheng-Han Lin, Dr. Chin-Chau Chen and Prof. Dr. Ming-Jung Wu Mercury(II)-Catalyzed Cyclization of 2-Alkynylphenyl Alkyl Sulfoxides Provides 3-Acylbenzo[b]thiophenes Chemistry - A European Journal 19

Version of Record online: 18 JAN 2013 | DOI: 10.1002/chem.201202704

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Ring cyclization: A mercury-catalyzed cyclization reaction to provide 3-benzoylbenzo[b]thiophenes was achieved in good yields by treatment of 2-alkynylphenyl alkyl sulfoxides with mercury chloride and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in benzene heated at reflux for 24 h (see scheme).

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