𝔖 Bobbio Scriptorium
✦   LIBER   ✦

N-[(Diphenoxyphosphoryl)oxy]-2-phenyl-1H-benzimidazole as a versatile reagent for synthesis O-alkylhydroxamic acids

✍ Scribed by Nagnnath D. Kokare; Devanand B. Shinde


Publisher
Journal of Heterocyclic Chemistry
Year
2008
Tongue
English
Weight
331 KB
Volume
45
Category
Article
ISSN
0022-152X

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

magnified image

Highly efficient reagent, N‐[(diphenoxyphosphoryl)oxy]‐2‐phenyl‐1__H__‐benzimidazole was synthesized and its applicability was demonstrated for the synthesis of O‐alkyl hydroxamic acids. The efficiency of the reagent was evaluated through the synthesis of range of O‐alkyl hydroxamic acids from aromatic carboxylic acids as well as N‐protected amino acids. The enatiomeric purity of synthesized compounds was measured using chiral HPLC and the degree of racemization that occurred was found to be negligible.


📜 SIMILAR VOLUMES


Synthesis and application of silica phen
✍ Hojat Veisi; Alireza Sedrpoushan; Mohammad Ali Zolfigol; Farajollah Mohanazadeh 📂 Article 📅 2011 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 302 KB

## Abstract Silica phenyl sulfonic acid (SPSA) was prepared and effectively used in the one‐pot synthesis of 2‐aryl‐1‐arylmethyl‐1H‐1,3‐benzimidazoles from __o__‐phenylenediamine with aldehydes in water in the presence of tetrabutyl ammonium bromide with good to high yield. Also, SPSA was used as a