Issue 47, 2007
From the journal:

Chemical Communications

The unprecedented ring transformation from thiazoline-spiro-thiophene to thieno[2,3-b]pyrazine involved in the reaction of 2-thiocarbamoyl thiazolium salts with dimethyl acetylenedicarboxylate†

Yang Guang Maa  and  Ying Cheng*a  

* Corresponding authors

a Chemistry Department, Beijing Normal University, Beijing, China
E-mail: ycheng2@bnu.edu.cn
Fax: +86-10-58802075
Tel: +86-10-58805558

Abstract

Reaction of 2-thiocarbamoyl thiazolium salts with dimethyl acetylenedicarboxylate proceeded via a tandem [3 + 2] cycloaddition and a unprecedented ring transformation to produce functionalized thieno[2,3-b]pyrazine derivatives in good to excellent yields.

Graphical abstract: The unprecedented ring transformation from thiazoline-spiro-thiophene to thieno[2,3-b]pyrazine involved in the reaction of 2-thiocarbamoyl thiazolium salts with dimethyl acetylenedicarboxylate

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Article information

DOI
https://doi.org/10.1039/B712098B
Article type
Communication
Submitted
07 Aug 2007
Accepted
20 Sep 2007
First published
05 Oct 2007

Chem. Commun., 2007, 5087-5089

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The unprecedented ring transformation from thiazoline-spiro-thiophene to thieno[2,3-b]pyrazine involved in the reaction of 2-thiocarbamoyl thiazolium salts with dimethyl acetylenedicarboxylate

Y. G. Ma and Y. Cheng, Chem. Commun., 2007, 5087 DOI: 10.1039/B712098B

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