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The Behavior of (cyclic-alkylidene)hydrazinecarbothioamides in Cyclization with Dimethyl acetylenedicarboxylate.
- Source :
-
Journal of Heterocyclic Chemistry . May2017, Vol. 54 Issue 3, p2043-2053. 11p. - Publication Year :
- 2017
-
Abstract
- A series of ( Z)-methyl 2( Z)-3-substituted-2-(cycloalkylidenehydrazono)-4-oxothiazolidin-5-ylidene)-acetate derivatives were synthesized via condensation alkylidene- N-substituted hydrazinecarbothioamides with dimethyl acetylenedicarboxylate. The synthesized compounds were characterized by using different spectroscopic methods and confirmed by single crystal X-ray analysis. The behavior of (cyclic-alkylidene) hydrazinecarbothioamides in cyclization was presented. The mechanism of transformation of ( Z)-methyl 2-(( Z)-3-(cyclopentylideneamino)-4-oxo-2-(phenylimino)thiazolidin-5-ylidene)acetate ( 14) into the more stable ( Z)-Methyl 2-[( Z)-2-(cyclopentylidenehydrazono)-4-oxo-3-phenylthiazolidin-5-ylidene]acetate ( 5a) was discussed and confirmed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0022152X
- Volume :
- 54
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Heterocyclic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 123149366
- Full Text :
- https://doi.org/10.1002/jhet.2803