✦ LIBER ✦

Simple and mild procedures for synthesis of benzimidazole derivatives using heterogeneous catalyst systems

✍ Scribed by Hashem Sharghi; Omid Asemani; Seyed Mohammad Hossein Tabaei

Publisher: Journal of Heterocyclic Chemistry
Year: 2008
Tongue: English
Weight: 363 KB
Volume: 45
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570450506

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

magnified image

TsOH/graphite and N,N‐dimethylaniline/graphite were found to be catalyst systems for condensation reaction of o‐phenylendiamine with different aldehydes to form benzimidazole derivatives under mild and simple conditions. The graphite was easily recovered by a simple extraction and could be reused without decrease of activity in the presence of fresh TsOH and N,N‐dimethylaniline.

📜 SIMILAR VOLUMES

ChemInform Abstract: Simple and Mild Pro

ChemInform Abstract: Simple and Mild Procedures for Synthesis of Benzimidazole Derivatives Using Heterogeneous Catalyst Systems.

✍ Hashem Sharghi; Omid Asemani; Seyed Mohamad Hossein Tabaei 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 38 KB 👁 2 views

A simple, mild, and efficient procedure

A simple, mild, and efficient procedure for high-yield synthesis of benzimidazoles using coppertriflate as catalyst

✍ M. Adharvana Chari; P. Sadanandam; D. Shobha; K. Mukkanti 📂 Article 📅 2010 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 123 KB

## Abstract magnified image Copper triflate has been found to be an efficient catalyst for the synthesis of benzimidazoles from __o__‐phenylenediamine and aldehydes at reflux temperature under acetonitrile solvent. This new method consistently has the advantage of excellent yields (74–95%) at refl

ChemInform Abstract: A Simple, Mild, and

ChemInform Abstract: A Simple, Mild, and Efficient Procedure for High-Yield Synthesis of Benzimidazoles Using Copper Triflate as Catalyst.

✍ M. Adharvana Chari; P. Sadanandam; D. Shobha; K. Mukkanti 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 25 KB 👁 2 views

A Simple and Efficient Procedure for the

A Simple and Efficient Procedure for the Synthesis of Benzimidazoles Using Air as the Oxidant.

✍ Songnian Lin; Lihu Yang 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 21 KB 👁 1 views

A simple and efficient procedure for the

A simple and efficient procedure for the synthesis of benzimidazoles using trichloroisocyanuric acid (TCCA) as the oxidant

✍ Mohammad A. Bigdeli; Hamideh Dostmohammadi; Firouzeh Nemati; Gholam Hossein Mahd 📂 Article 📅 2008 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 189 KB

## Abstract magnified image A Direct one step synthesis of various benzimidazoles from 3,4‐diaminotoluene and benzaldehydes is described using TCCA as the oxidant. The salient features of this method include simple procedure, mild condition, no waste products, easy separation, low reaction times a

An Efficient Procedure for the Synthesis

An Efficient Procedure for the Synthesis of Benzimidazole Derivatives Using Yb(OTf)3 as Catalyst under Solvent-Free Conditions.

✍ Limin Wang; Jia Sheng; He Tian; Changtao Qian 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 16 KB 👁 2 views

## Abstract For Abstract see ChemInform Abstract in Full Text.