Condensed imidazo-1,2,4-azines 22. Alkylation of 5H-imidazo[1,2-b]-1,2,4-triazepin-4-ones
โ Scribed by V. P. Kruglenko; V. A. Idzikovskii; N. N. Kobets; M. V. Povstyanoi
- Publisher
- Springer US
- Year
- 1990
- Tongue
- English
- Weight
- 239 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0009-3122
No coin nor oath required. For personal study only.
โฆ Synopsis
Substituted 5H-imidazo[l,2-b]-l,2,4-triazepin-4-ones react with alkyl (alkenyl) halides, 2-chloroethanol, glycerin dichlorohydrin, haloacetic acids, the methyl ester and amide of menochloroacetic acid in a methanol-sodium methylate system to form N(s)-alkylation products, and with hydroxylamino-O-sulfonic acid to form 5-aminoimidazo[l,2-b]-l,2,4-triazepin-4-one.
๐ SIMILAR VOLUMES
Hydrazonoyl bromides 1a-c react with 5-amino-3phenyl-1H-pyrazole, 5-amino-1H-1,2,4-triazole, 2aminopyridine, 2-aminopyrimidine, and 2-aminobenzimidazole to afford the corresponding imidazo[1,2-b]pyrazoles 10, imidazo[1,2-b]-1,2,4-triazoles 11, imidazo[1,2-a]pyridines 16, imidazo[1,2-a]pyrimidines 17