Article ID Journal Published Year Pages File Type
1325269 Journal of Organometallic Chemistry 2009 9 Pages PDF
Abstract

A cobalt-containing P,N-ligand, alkyne-bridged dicobalt phosphine [(μ-PPh2CH2PPh2)Co2(CO)4(μ,η-Me2NCH2CCP(Cy)2)] (4c), was prepared from the reaction of Me2NCH2CCPR2 (2c) with a dppm-bridged dicobalt complex [Co2(CO)6(μ-P,P-PPh2CH2PPh2)] (3). Further reaction of 4c with Pd(COD)Cl2 gave a 4c-chelated palladium dichloride complex (μ-PPh2CH2PPh2)Co2(CO)4(μ,η-Cy2PCCCH2NMe2)PdCl2 (5c). Compound 5c was characterized by spectroscopic methods and crystal structure of 5c was determined by single-crystal X-ray diffraction techniques. It shows that 4c is an authentic cobalt-containing P,N-bidentate ligand. Amination and Suzuki reactions employing either a 4c/palladium salt system or an isolated 5c as the catalytic precursor led to satisfactory results.

Graphical abstractReaction of a cobalt-containing P,N-ligand 4c with Pd(COD)Cl2 gave a 4c-chelated palladium dichloride complex 5c. Amination and Suzuki reactions employing either 4c/palladium salt system or isolated 5c as the catalytic precursor led to satisfactory results.Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemistry Inorganic Chemistry
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