Pyrimidine derivatives and related compounds. 38. Synthesis of 1,3-oxazine-2,4-diones and their reaction with nucleophiles. Ring transformation of 1,3-oxazines to pyrimidines
β Scribed by Motoi Yogo; Kosaku Hirota; Shigeo Senda
- Book ID
- 112126518
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1981
- Tongue
- English
- Weight
- 500 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-152X
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π SIMILAR VOLUMES
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
## Abstract 3,5βDiaminoβ4βphenylazoβpyrazoles (**1aβ1c**) react with acetylacetone and with ethyl acetoacetate to yield the corresponding pyrazolo[1,5βa]pyrimidine derivatives **2aβ2c** and **3aβ3c**, respectively. Whereas **1aβ1c** add readily to methyl acrylate yielding the 4,5,6,7βtetrahydropyr