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Bis(chalcogenones) as pincer ligands: isolation and Heck activity of the selone-ligated unsymmetrical C,C,Se-Pd pincer complex

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Title Bis(chalcogenones) as pincer ligands: isolation and Heck activity of the selone-ligated unsymmetrical C,C,Se-Pd pincer complex
 
Creator GHAVALE, N
MANJARE, ST
SINGH, HB
BUTCHER, RJ
 
Subject PALLADIUM(II) COMPLEXES
CATALYTIC-ACTIVITY
COUPLING REACTIONS
EFFICIENT ROUTE
SELENIUM
BOND
COORDINATION
CHEMISTRY
CARBENES
PLATINUM
 
Description The reaction of meta-phenylene-bis(1-methyl-1H-imidazole-2(3H)-selone) with [Pd-2(mu-Cl)(2)(2-C6H4CH2NMe2)(2)] in dry benzene and glacial acetic acid resulted in the formation of an unsymmetrical 5,6-membered C,C,Se-Pd(II) pincer complex through C-H bond activation and extrusion of one selenium. This is the first example of a C,C,Se-Pd(II) complex wherein the central Pd(II) is simultaneously coordinated to a selone and an N-heterocyclic carbene. The chelated complex of the type [PdL2](2+)2[PF6](L = bis(selone)) was isolated from the reaction of the bis(selone) with [PdCl2(PhCN)(2)] and NH4PF6. The unsymmetrical pincer complex was studied for Heck activity revealing its application as an acceptable catalyst in coupling of iodobenzene with acrylates and styrene.
 
Publisher ROYAL SOC CHEMISTRY
 
Date 2016-01-15T07:08:51Z
2016-01-15T07:08:51Z
2015
 
Type Article
 
Identifier DALTON TRANSACTIONS, 44(26)11893-11900
1477-9226
1477-9234
http://dx.doi.org/10.1039/c5dt01565k
http://dspace.library.iitb.ac.in/jspui/handle/100/18012
 
Language en