Reaction mechanism of regioisomerization in binuclear (diaminocarbene)PdII complexes
Abstract A series of binuclear PdII carbene complexes were synthesized via the treatment of cis-[PdCl2(CNXyl)2] (1) with benzo-1,3-thiazol-2-amines (2–6) and structurally characterized. In every case the reaction leads to the mixture of two regioisomers, which are able to interconvert. The study of the regioisomerization of the binuclear diaminocarbene species showed that it is a first-order reaction, that is, it occurs intramolecularly, and was analyzed with the Hammett function. Electron-withdrawing substituents in the benzothiazole moiety of the complexes as well as increasing the solvent polarity accelerate the reaction. The solvent donor strength correlates less well with the isomeriza…
CCDC 1966338: Experimental Crystal Structure Determination
Related Article: Alexander S. Mikherdov, Roman A. Popov, Mikhail A. Kinzhalov, Matti Haukka, Valeriy A. Polukeev, Vadim P. Boyarskiy, Andreas Roodt|2021|Inorg.Chim.Acta|514|120012|doi:10.1016/j.ica.2020.120012
CCDC 1966337: Experimental Crystal Structure Determination
Related Article: Alexander S. Mikherdov, Roman A. Popov, Mikhail A. Kinzhalov, Matti Haukka, Valeriy A. Polukeev, Vadim P. Boyarskiy, Andreas Roodt|2021|Inorg.Chim.Acta|514|120012|doi:10.1016/j.ica.2020.120012