Journal Article Reactivity of a Methoxido-Ruthenium Complex Bearing a Pincer-Type Bis(carbene) Ligand toward Thiocyanate, Carbon Disulfide, and Isothiocyanate

Arikawa, Yasuhiro  ,  Nakamura, Takuo  ,  Higashi, Takefumi  ,  Horiuchi, Shinnosuke  ,  Sakuda, Eri  ,  Umakoshi, Keisuke

2017 ( 5 )  , pp.881 - 884 , 2017-03-03 , WILEY-VCH Verlag GmbH & Co.
Thiocyanate linkage isomers and two insertion complexes were prepared from a methoxido–ruthenium complex bearing a 2,6-bis(3-tert-butylimidazol-2-ylidene)pyridine (CNC) and a bipyridine ligand. In the mixture of the linkage isomers obtained from the substitution reaction, a linear N-bound and a bent S-bound isomer were crystallographically determined, and the equilibrium between them at elevated temperature was revealed. On the other hand, in reactions with carbon disulfide (CS2) and phenyl isothiocyanate (PhNCS), the S=C bond was inserted into the Ru–OMe bond, and the resulting ligands are bound to the ruthenium center by the sulfur atom.

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