26494-10-0Relevant articles and documents
o-quinonoid heterocycles: Synthesis and crystal structure of 2,3-dicyano-5,7-bismethylthieno[3,4-b]pyrazine
Morkved, Eva H.,Beukes, Jon A.,Mo, Frode
, p. 1623 - 1631 (2007)
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-on
Certain lower alkyl 4,5-dihydrothiophene-3-thiols
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, (2008/06/13)
Novel sulphur containing food flavor substances are provided containing an oxygen or sulphur atom in a five or six membered ring structure, one alkyl or hydroxy alkyl substituent at at least either of the carbon atoms adjacent to the hetero atom and having at least one sulphur or oxygen atom attached to another carbon atom of the ring structure.