The reaction of triarylideneacetylacetones with hydrazine hydrate in acetic acid a β 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,
Synthesis and 1H and 13C NMR study of the stereochemistry of (E )-2-acetyl-3-aryl-7-arylidene-3,3a,4,5,6,7-hexahydroindazoles
β Scribed by V. Vijayabaskar; S. Perumal; S. Selvaraj; M. J. E. Hewlins
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 113 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0749-1581
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β¦ Synopsis
The reaction of 2,6-diarylidenecyclohexanones with hydrazine hydrate in glacial acetic acid resulted in the formation of diastereomers of (E)-2-acetyl-3-aryl-7-arylidene-3,3a,4,5,6,7-hexahydroindazoles. The relative conΓgurations of these diastereomers were unambiguously assigned using 1H and 13C NMR spectroscopic methods.
π SIMILAR VOLUMES
Novel 6-aryl-3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazolo[3,4-b]-1,3,4-thiadiazoles were synthesized by the condensation of 3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-4amino-5-mercapto-s-triazole with various aromatic carboxylic acids in the presence of phosphorus oxychlorid