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ChemInform Abstract: Synthesis of N-Methylmorpholinium 6-Amino-4-aryl-4-methyl-3,5-dicyano-1,4-dihydropyridine-2-thiolates under Conditions of Michael Reaction.

✍ Scribed by V. D. DYACHENKO; V. P. LITVINOV

Publisher: John Wiley and Sons
Year: 2010
Weight: 32 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199838154

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✦ Synopsis

Synthesis of N-Methylmorpholinium 6-Amino-4-aryl-4-methyl-3,5dicyano-1,4-dihydropyridine-2-thiolates under Conditions of Michael Reaction.

-Reaction of alkylidenemalononitriles (I) with cyanothioacetamide (II) affords the corresponding Michael adducts which cyclize immediately to the title 1,4-dihydropyridine-2-thiolates (IV). In a similar manner, the tetrahydrobenzopyrane (VIII) is obtained in reaction of malononitrile (Ia) and dimedone. -(DYACHENKO, V.

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