o-Quinonoid Heterocycles: Synthesis and Crystal Structure of 2,3-Dicyano-5,7-bismethylthieno[3,4-b]pyrazine

o-Quinonoid Heterocycles: Synthesis and Crystal Structure of 2,3-Dicyano-5,7-bismethylthieno[3,4-b]pyrazine

2,3-Dicyano-5,7-bismethylthieno[3,4-b]pyrazine (5), has been obtained as a minor product from reactions of S-nucleophiles with 5,6-di(1-bromoethyl)pyrazine-2,3- dicarbonitrile (3), or from a condensation of 4-hydroxy-2,5-dimethyl-2,3-dihydrothiophen- 3-one (4) with diaminomaleonitrile. The molecular...

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Bibliographic Details
Main Authors: Frode Mo, Jon A. Beukes, Eva H. Mørkved
Format: Article
Language:English
Published: MDPI AG 2007-07-01
Series:Molecules
Subjects:
Thieno[3
4-b]pyrazine
o-quinonoid heterocycles
pyrazine-dicarbonitrile
di(1-bromoethyl)pyrazine
crystal structure.
Online Access:http://www.mdpi.com/1420-3049/12/8/1623/

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