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Synthesis 2007(17): 2706-2710
DOI: 10.1055/s-2007-983821
DOI: 10.1055/s-2007-983821
PAPER
© Georg Thieme Verlag Stuttgart · New York
Fischer Synthesis of 1H- and 3H-[1]Benzothieno[3,2-b]pyrroles
Further Information
Received
16 February 2007
Publication Date:
30 July 2007 (online)
Publication History
Publication Date:
30 July 2007 (online)
Abstract
The reaction of 1-benzothiophen-3(2H)-one hydrazone with various ketones under different conditions has been studied and a convenient method has been proposed for the synthesis of thienopyrrole derivatives. The method is applicable to the preparation of 1H- and 3H-benzothienopyrroles with a range of substituents.
Key words
Fischer reaction - thieno[3,2-b]pyrroles - hydrazones - ketones - [3,3]-sigmatropic rearrangements
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