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Chemoselective Ullmann coupling at room temperature: a facile access to 2-aminobenzo[b]thiophenes

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Abstract

Various functionalized 2-aminobenzo[b]thiophenes have been synthesized at room temperature by the Ullmann coupling reaction for the first time. The enantiospecific coupling reaction has been further demonstrated without loss of optical purity. The newly synthesized 2-anilino-3-cyano-benzo[b]thiophenes are transformed into 11-amino-benzothieno[2,3-b]quinolines in the presence of triflic acid.

Graphical abstract: Chemoselective Ullmann coupling at room temperature: a facile access to 2-aminobenzo[b]thiophenes

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Publication details

The article was received on 27 Apr 2017, accepted on 30 Jun 2017 and first published on 03 Jul 2017


Article type: Communication
DOI: 10.1039/C7CC03273K
Citation: Chem. Commun., 2017, Advance Article
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    Chemoselective Ullmann coupling at room temperature: a facile access to 2-aminobenzo[b]thiophenes

    M. Janni, A. Thirupathi, S. Arora and S. Peruncheralathan, Chem. Commun., 2017, Advance Article , DOI: 10.1039/C7CC03273K

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