One-step synthesis of new heterocyclic azacyanines
β Scribed by Makhluf J Haddadin; Mark J Kurth; Marilyn M Olmstead
- Book ID
- 108379868
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 168 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Dimerizations of cyclic enamines 1 (R=H2) occurring via iminium intermediates 2 (R=H2) are well-known 1) and have been applied recently in alkaloid synthe-sis2). Schematically the overall process can be represented as follows: R'
## Abstract magnified image Disubstituted 1,2,4βoxadiazoles have been synthesized in good yields and good purity in one pot procedure by reaction of aromatic nitriles, hydroxylamine hydrochloride and sodium carbonate in ethylene glycol under heating at 195Β°C. The structures of different 1,2,4βoxad