The C-H activation of the methyl group of tetramethylthiourea by cis-[PtL2(NO3)2] (L = phosphine or N-heterocyclic carbene) has been investigated as a function of the ligand L. The presence of an electron-withdrawing group on the tertiary phosphine was found to promote the process. moreover, with an excess of nitrate ion present in the reaction mixture, the rate of C-H bond activation is retarded, suggesting the key role of an unsaturated tri-coordinate Pt(II) species as intermediate.
Platinum(II) mediated Csp3-H activation of tetramethylthiourea / S. Fantasia, A. Pasini, S. Nolan. - In: DALTON TRANSACTIONS. - ISSN 1477-9226. - 2009:38(2009 Oct), pp. 8107-8110.
Platinum(II) mediated Csp3-H activation of tetramethylthiourea
S. FantasiaPrimo
;A. PasiniSecondo
;
2009
Abstract
The C-H activation of the methyl group of tetramethylthiourea by cis-[PtL2(NO3)2] (L = phosphine or N-heterocyclic carbene) has been investigated as a function of the ligand L. The presence of an electron-withdrawing group on the tertiary phosphine was found to promote the process. moreover, with an excess of nitrate ion present in the reaction mixture, the rate of C-H bond activation is retarded, suggesting the key role of an unsaturated tri-coordinate Pt(II) species as intermediate.
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