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Reaction of 4,5-diamino-3-methyl-1-phenylpyrazole with 3-dimethylaminopropiophenones. Synthesis of new 4-aryl-6-methyl-8-phenyl-2,3-dihydropyrazolo[3,4-b]diazepines and 4-aryl-8-methyl-6-phenyl-2,3-dihydropyrazolo[4,3-b]diazepines

✍ Scribed by Braulio Insuasty O; Henry Insuasty I; Jairo Quiroga P; Claudio Saitz; Carolina Jullian

Publisher
Journal of Heterocyclic Chemistry
Year
1999
Tongue
English
Weight
222 KB
Volume
36
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

New 4‐Aryl‐6‐methyl‐8‐phenyl‐2,3‐dihydropyrazolo[3,4‐b]diazepines and 4‐aryl‐8‐methyl‐6‐phenyl‐2,3‐dihydropyrazolo[4,3‐b]diazepines were obtained from the reaction of 4,5‐diamino‐3‐methyl‐1‐phenylpyrazole 1 with one equivalent of the 3‐dimethylaminopropiophenones 2 in absolute ethanol. The structures of 4‐aryl‐6‐methyl‐8‐phenyl‐2,3‐dihydropyrazolo[3,4‐b]diazepines 3 and 4‐aryl‐8‐methyl‐6‐phenyl‐2,3‐dihydropyrazolo[4,3‐b]diazepines 4 were determined by detailed nmr measurements.

📜 SIMILAR VOLUMES

Reaction of 4,5,6-triaminopyrimidine and
Reaction of 4,5,6-triaminopyrimidine and 2,4,5,6-tetraaminopyrimidine with 3-dimethylaminopropiophenones. Synthesis of new 4-aryl-2,3-dihydropyrimido[4,5-b][1,4]diazepines
✍ Insuasty O. Braulio; Insuasty I. Henry; Quiroga P. Jairo; Claudio Saitz; Carolin 📂 Article 📅 2000 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 192 KB 👁 1 views

## Abstract Several new 6‐amino‐ and 6,8‐diamino‐4‐aryl‐2,3‐dihydropyrimido[4,5‐__b__][1,4]diazepines were obtained from the reaction of 4,5,6‐triaminopyrimidine **1a** and 2,4,5,6‐tetraaminopyrimidine **1b** with one equivalent of 3‐dimethylaminopropiophenones **2** in absolute ethanol. Structure

ChemInform Abstract: Reaction of 4,5,6-T
ChemInform Abstract: Reaction of 4,5,6-Triaminopyrimidine and 2,4,5,6-Tetraaminopyrimidine with 3-Dimethylaminopropiophenones. Synthesis of New 4-Aryl-2,3-dihydropyrimido[4,5-b][1,4]diazepines.
✍ Braulio Insuasty O.; Henry Insuasty I.; P. Jairo Quiroga; Claudio Saitz; Carolin 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v