Peer-Reviewed Journal Details
Mandatory Fields
Sung S;Tinnermann H;Krämer T;Young RD;
2019
July
Dalton Transactions
Direct oxide transfer from an η2-keto ligand to generate a cobalt PCcarbeneP(O) pincer complex.
Published
7 ()
Optional Fields
48
27
We report the direct carbonyl cleavage in a κ3-P',(η2-C,O),P'' ligand by a monomeric cobalt centre through metal-ligand cooperativity. C-O cleavage leads to the formation of a PCcarbeneP(O) pincer ligand with a central alkylidene anchor. A DFT analysis, supported by kinetic studies, suggests that decoordination of a pincer phosphino arm to generate a kinetically accessible free phosphine may be critical in transfer of the oxide to a phosphorus position. Thus, oxide transfer to bisphosphino bidentate co-ligands was also found to be viable, allowing access to the previously reported PCcarbeneP pincer complex (2), where bisphosphines were used as oxide sequestering agents.
1477-9234
10.1039/c9dt02313e
Grant Details