𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Reductive cyclization of carbohydrate 2-nitrophenylhydrazones to chiral functionalized 1,2,4-benzotriazines and benzimidazoles

✍ Scribed by Jens Andersch; Dieter Sicker

Book ID
102341319
Publisher
Journal of Heterocyclic Chemistry
Year
1999
Tongue
English
Weight
453 KB
Volume
36
Category
Article
ISSN
0022-152X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The 2‐nitrophenylhydrazones 2 of D‐arabino‐2‐hexulopyranosonic acid, D‐arabinose, D‐galactose and D‐galacturonic acid are used as precursors to form chiral functionalized 1,2,4‐benzotriazines and benzimidazoles by reductive cyclization methods. Catalytic hydrogenation provided the amine derivatives which are cyclized and air oxidized in alkaline solution to yield the novel 1,2,4‐benzotriazines 3 as the main products, while on acid catalysis the benzimidazoles 4 are formed.

📜 SIMILAR VOLUMES

ChemInform Abstract: Reductive Cyclizati
ChemInform Abstract: Reductive Cyclization of 4-Alkyl-2-nitroacetanilides with Baker′s Yeast to 6-Alkylbenzimidazoles and 1-Hydroxy-2-methyl-6-alkylbenzimidazoles.
✍ Arturo Navarro-Ocana; Luis F. Olguin; Hector Luna; Manuel Jimenez-Estrada; Eduar 📂 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