1,2,3-Triarylpropenones as starting materials for 2-pyridinethiones

DOI: 10.1002/recl.19871061102

Source and publish data:

Recueil des Travaux Chimiques des Pays-Bas p. 554 - 557 (1987)

Update date:2022-08-05

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Authors:

Paniagua, Esther

Rubio, Maria J.

Seoane, Carlos

Soto, JoseL.

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Article abstract of DOI:10.1002/recl.19871061102

2-Pyridinethiones 3 are obtained in good yields from 1,2,3-triarylpropenones 2 by treatment with cyanothioacetamide 1. Disulfides 4 result from oxydation of 3. Pyridinethiones 3 undergo methylation at the sulfur atom, leading to (methylthio)pyridines 5, which can be hydrolized to carboxamides 6. Thieno[2,3-b]pyridines 7 are obtained from 3 upon reaction with methyl chloroacetate.

Full text of DOI:10.1002/recl.19871061102

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