𝔖 Bobbio Scriptorium
✦   LIBER   ✦

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

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

Publisher
Journal of Heterocyclic Chemistry
Year
2000
Tongue
English
Weight
192 KB
Volume
37
Category
Article
ISSN
0022-152X

No coin nor oath required. For personal study only.

✦ Synopsis

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 analysis of 6‐amino‐ and 6,8‐diamino‐4‐aryl‐2,3‐dihydropyrimido[4,5‐b][1,4]diazepines 3a‐i, determined by detailed nmr measurements, reveals a high regioselectivity of this reaction.

📜 SIMILAR VOLUMES

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

Synthesis of 2-aryl-2,3-dihydro-4-styryl
Synthesis of 2-aryl-2,3-dihydro-4-styrylpyrimidodiazepines in the reaction of 4,5,6-triaminopyrimidine and 2,4,5,6-tetraaminopyrimidine with diarylidenacetones
✍ Braulio Insuasty; Henry Insuasty; Jairo Quiroga; Manuel Nogueras; Adolfo Sánchez 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 266 KB 👁 1 views

## Abstract New 6‐amino and 6,8‐diamino‐2‐aryl‐2,3‐dihydro‐4‐styryl‐1__H__‐pyrimido[4,5‐__b__][1,4]diazepines were obtained in the reaction of 2,4,5,6‐tetraaminopyrimidine 1a and 4,5,6‐triaminopyrimidine 1b with one equivalent of the diaryli dene acetones 2 in absolute ethanol with acetic acid as t

Reaction of 4,5-diamino-3-methyl-1-pheny
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
✍ Braulio Insuasty O; Henry Insuasty I; Jairo Quiroga P; Claudio Saitz; Carolina J 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 222 KB

## 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 e