Pyridine Mediated Palladium Acetate-Catalysed Dehalogenation of Biaryl Halides in Ionic Liquid System-Reference-Cited by-同舟云学术

Pyridine Mediated Palladium Acetate-Catalysed Dehalogenation of Biaryl Halides in Ionic Liquid System

Published:2012-07 Issue:7 Volume:36 Page:407-410
ISSN:1747-5198
Container-title:Journal of Chemical Research
language:en
Short-container-title:Journal of Chemical Research

Author:

Xin Bingwei¹,Jia Chunxiao¹,Qi Zhixun²

Affiliation:

1. Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong (Dezhou University), Dezhou 253023, P. R. China

2. Chemical Engineering & Technology, Grade 2009, Class 1, Beijing University of Chemical Technology, Beijing 100029, P. R. China

Abstract

The palladium acetate-catalysed dehalogenation of biaryl halides has been investigated in room temperature ionic liquids with pyridine acting as a co-solvent. The significant effect of pyridine in conjunction with Pd(OAc)2 in [bmim][PF6] gave excellent results in the dehalogenation of biaryl iodines and bromides. The pyridine activated the C2-H of the imidazolium salt to be the source of hydrogen. The separation of desired product was easily performed by extraction with diethyl ether and the Pd(OAc)2–[bmim][PF6] system could be recycled five times with only a small decrease in activity. This procedure represents an environmentally friendly method for the preparation of biaryl compounds without the use of complex ligands.

Publisher

SAGE Publications

Subject

General Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/174751912X13371621157105

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