Pyrroles from Methyl 3‐Amino‐3‐arylazo‐propenoat and α‐Halogenocarbonyl Compounds and the Forming of the Pyrrolo[3.2‐e][1,2,4]‐triazin Ring System Methyl 3‐amino‐3‐(2,4,6‐trichlor‐phenylazo)propenoat (2) and α‐halogenocarbonyl compounds (4a–c) undergo cyclization to pyrroles on the pattern of the H
✦ LIBER ✦
1-Arylimino-pyrazol-Betaine, Pyrazole und 1,2,4-Triazine aus 3-Arylazo-propensäure-N-chloroamiden
✍ Scribed by Dr. G. Lutze; K. Kirschke; N. Krauß
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 521 KB
- Volume
- 335
- Category
- Article
- ISSN
- 1615-4150
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## Abstract __N__‐vinylation of pyrazolecarboxylates and 1,2,3‐triazolecarboxylates with vinyl acetate leads to the formation of the __N__‐vinylpyrazoles and __N__‐vinyl‐1,2,3‐triazoles. The structures are determined by mass and NMR spectra. The syntheses of crosslinked poly[1‐(3,4‐dicarboxypyrazol