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Issue 33, 2015
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Thiophene synthesis via 1,1-carboboration

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Reaction of bis(tert-butylethynyl)sulfide with the boron Lewis acid reagents X–B(C6F5)2 (X = CH3, Cl, C6F5) in pentane at r.t. gave the respective borylated thiophenes in a sequence of 1,1-carboboration reactions. In contrast, bis(phenylethynyl)sulfide reacted with B(C6F5)3 only in a 2 : 1 molar ratio to give a benzothiophene derivative.

Graphical abstract: Thiophene synthesis via 1,1-carboboration

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The article was received on 05 Mar 2015, accepted on 19 Mar 2015 and first published on 20 Mar 2015

Article type: Communication
DOI: 10.1039/C5CC01806D
Citation: Chem. Commun., 2015,51, 7226-7229

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    Thiophene synthesis via 1,1-carboboration

    C. Eller, G. Kehr, C. G. Daniliuc, D. W. Stephan and G. Erker, Chem. Commun., 2015, 51, 7226
    DOI: 10.1039/C5CC01806D

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