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

Authors
Vijayabaskar, V Perumal, S Selvaraj, S Lycka, A Murugan, R Balasubramanian, M
Citation
V. Vijayabaskar et al., Synthesis and multinuclear NMR study of (E)-s-trans-1-acetyl-5-aryl-3-styryl-2-pyrazolines, MAGN RES CH, 37(2), 1999, pp. 133-139
Citations number
17
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
MAGNETIC RESONANCE IN CHEMISTRY
ISSN journal
07491581 → ACNP
Volume
37
Issue
2
Year of publication
1999
Pages
133 - 139
Database
ISI
SICI code
0749-1581(199902)37:2<133:SAMNSO>2.0.ZU;2-0
Abstract
The reaction of triarylideneacetylacetones with hydrazine hydrate in acetic acid affords an excellent yield of (E)-s-trans-1-acetyI-5-aryl-3-styryl-2- pyrazolines via decinnamoylation. The structures of these compounds were el ucidated using H-1, C-13 and two-dimensional NMR techniques such as H,H-COS Y, C,H-COSY, NOESY and HMBC. N-15 NMR data for these compounds were also ob tained and the results are discussed. Copyright (C) 1999 John Wiley & Sons, Ltd.