𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Thiamine hydrochloride (VB1): an efficient promoter for the one-pot synthesis of benzo[4,5]imidazo[1,2-a]pyrimidine and [1,2,4]triazolo[1,5-a]pyrimidine derivatives in water medium

✍ Scribed by Liu, Junhua; Lei, Min; Hu, Lihong

Book ID
111647257
Publisher
Royal Society of Chemistry
Year
2012
Tongue
English
Weight
155 KB
Volume
14
Category
Article
ISSN
1463-9262

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

On triazoles XLIV [1]. synthesis of new
On triazoles XLIV [1]. synthesis of new ring systems containing imidazo[2′,1′:3,4] [1,2,4] triazolo [1,5-a]pyrimidine and imidazo[1′,2′:2,3][1,2,4]triazolo[1,5-a]pyrimidine skeleton
✍ Gábor Berecz; József Reiter; Gyula Argay; Alajos Kálmán 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 85 KB

## Abstract **Dedicated to Dr. János Császár on the occasion of his 70^th^ birthday** Ring transformation of 2‐cyanoimido‐3‐methyl‐1,3‐oxazolidine (**10**) yielded 5‐amino‐3‐[__N__‐(2‐hydrox‐yethyl)‐__N__‐methyl]amino‐1__H__‐1,2,4‐triazole (**6**) that was ring closed with different β‐keto esters

One-pot synthesis of imidazo[1,2-b]pyraz
One-pot synthesis of imidazo[1,2-b]pyrazole, imidazo[1,2-b]-1,2,4-triazole, imidazo[1,2-a]pyridine, imidazo[1,2-a]pyrimidine, imidazo[1,2-a]benzimidazole, and 1,2,4-triazolo[4,3-a]benzimidazole derivatives
✍ Ahmad M. Farag; Kamal M. Dawood 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 181 KB 👁 1 views

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