Prev. Article Next Article Table of Contents

Note

Catalysis by Ionic Liquid. A Green Protocol for the Stereoselective Debromination of vicinal-Dibromides by [pmIm]BF₄ under Microwave Irradiation

Supporting Info

Brindaban C. Ranu* and Ranjan Jana

Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India ocbcr@iacs.res.in

J. Org. Chem., 2005, 70 (21), pp 8621–8624

DOI: 10.1021/jo051373r

Publication Date (Web): September 10, 2005

In papers with more than one author, the asterisk indicates the name of the author to whom inquiries about the paper should be addressed.

Abstract

An easily accessible ionic liquid, 1-methyl-3-pentylimidazolium fluoroborate, [pmIm]BF₄, has been demonstrated to be an efficient catalyst as well as reaction medium for the stereoselective debromination of a variety of structurally diverse vicinal-dibromides to the corresponding (E)-alkenes in high yields under microwave irradiation. This reaction does not require any organic solvent and any metal or any conventional reducing agent, and the ionic liquid is recycled without any appreciable loss of its catalytic efficiency.

View: Full Text HTML | Hi-Res PDF

Tools

SciFinder Links

History

Published In Issue October 14, 2005
Received July 2, 2005

Recommend & Share

Related Content

Ionic Liquid as Reagent. A Green Procedure for the Regioselective Conversion of Epoxides to Vicinal-Halohydrins Using [AcMIm]X under Catalyst- and Solvent-Free ConditionsThe Journal of Organic Chemistry
- Ionic Liquid as Reagent. A Green Procedure for the Regioselective Conversion of Epoxides to Vicinal-Halohydrins Using [AcMIm]X under Catalyst- and Solvent-Free Conditions
  Brindaban C. Ranu and Subhash Banerjee
  The Journal of Organic Chemistry 2005 70 (11), pp 4517–4519
  Abstract: A variety of structurally diverse epoxides undergo facile cleavages by ionic liquid, [AcMIm]X without any catalyst and solvent to produce the corresponding vicinal halohydrins in high yields. The cleavages are considerably fast and highly regioselective.
  Abstract | Full Text HTML | Hi-Res PDF
Ionic Liquid as Catalyst and Reaction Medium. The Dramatic Influence of a Task-Specific Ionic Liquid, [bmIm]OH, in Michael Addition of Active Methylene Compounds to Conjugated Ketones, Carboxylic Esters, and NitrilesOrganic Letters
- Ionic Liquid as Catalyst and Reaction Medium. The Dramatic Influence of a Task-Specific Ionic Liquid, [bmIm]OH, in Michael Addition of Active Methylene Compounds to Conjugated Ketones, Carboxylic Esters, and Nitriles
  Brindaban C. Ranu and Subhash Banerjee
  Organic Letters 2005 7 (14), pp 3049–3052
  Abstract: A task-specific ionic liquid, [bmIm]OH, has been introduced as a catalyst and as a reaction medium in Michael addition. Very interestingly, although the addition to α,β-unsaturated ketones proceeds in the usual way, giving the monoaddition products, this ...
  Abstract | Full Text HTML | Hi-Res PDF

Note

Catalysis by Ionic Liquid. A Green Protocol for the Stereoselective Debromination of vicinal-Dibromides by [pmIm]BF₄ under Microwave Irradiation