New bulky phosphinopyridine ligands. PNC Tridentates in palladium complexes
Resource
Dalton Transactions 2003: 1419-1424
Journal
Dalton Transactions
Journal Volume
7
Pages
1419-1424
Date Issued
2003
Date
2003
Author(s)
Abstract
The sterically bulky pyridinyl phosphine (P∼N) ligands have been prepared from the phosphinylation of 2,4-di-tert-butyl-6-methylpyridine. Due to the steric hindrance, substitution reaction of these P∼N ligands with (COD)PdMeCl yields the chloro-bridged dipalladium species [(P∼N) 2Pd2Me2Cl2], in which the P~N ligand acts as a monodentate. Treatment of these dimeric palladium compounds with AgBF4 in the presence of acetonitrile gives the corresponding C-H activation metal complex [(P∼N∼C)Pd(CH3CN)]BF4. Both spectral and X-ray single-crystal characterization of these palladium complexes are presented.
Type
journal article
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