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Synthesis and multinuclear NMR study of (E)-s-trans -1-acetyl-5-aryl-3-styryl-2-pyrazolines

✍ Scribed by V. Vijayabaskar; S. Perumal; S. Selvaraj; A. Lycka; R. Murugan; M. Balasubramanian

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 133 KB
Volume: 37
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199902)37:2<133::aid-mrc419>3.0.co;2-j

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✦ Synopsis

The reaction of triarylideneacetylacetones with hydrazine hydrate in acetic acid a †ords an excellent yield of (E)-s-trans-1-acetyl-5-aryl-3-styryl-2-pyrazolines via decinnamoylation. The structures of these compounds were elucidated using 1H, 13C and two-dimensional NMR techniques such as H,H-COSY, C,H-COSY, NOESY and HMBC. 15N NMR data for these compounds were also obtained and the results are discussed.

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