2004 Thiazole derivatives R 0260 Synthesis and Reactions of 3-Methyl-1-phenyl-4-(3-phenyl-2-thiazolin-4-on-2-yl)pyrazolin-5-one (V). -(ATTA, A. H.; Rev. Roum. Chim. 49 (2004) 1,
Studies in the Vilsmeier-Haack reaction, part VII: Synthesis and reaction of 3-methyl-1-phenyl-4-acetyl hydrazono 2-pyrazoline-5-one(-5-thione)
โ Scribed by Ibrahim M. A. Awad
- Publisher
- Springer Vienna
- Year
- 1990
- Tongue
- English
- Weight
- 463 KB
- Volume
- 121
- Category
- Article
- ISSN
- 0026-9247
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๐ SIMILAR VOLUMES
## Abstract 4โ(Dicyanomethylene)โ3โmethylโ1โphenylโ2โpyrazolineโ5โone (1) readily reacts with ฮฑโamino acids and their esters by Michael addition and subsequent elimination of HCN to the adducts 2aโk. One of these, 2i (obtained from methyl glycinate), adds stereoselectively to __N__โphenylmaleimide
Vilsmeier-Haack type reaction on isoxazolin-5-ones is presented. Recently described is zin-6-ones. 2 The synthetic We report here on the the preparation of a number of E-amino-' and 2-phenyl-6H-1,3-oxapotential of such a class of compounds is well documented.3 syntheses by a Vilsmeier-Haack type rea