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Regioisomerism in coordination chemistry: oxidative addition of bifunctional ligand to palladium, stabilized with 1,2-bis(diphenylphosphino)ethane

Abstract

A unique phenomenon of regioisomerism in coordination chemistry was discovered: reaction of sterically hindered o-quinone annelated with dithiete ring 1 with Pd2dba3 in presence of 1,2-bis(diphenylphosphino)ethane (dppe) gave mixture of two regioisomers catecholate 3Cat and dithiolate 3Dit. Both isomers were isolated in crystalline form and characterized by NMR, IR and X-ray diffractometry studies. DFT calculations reveal that 3Dit species is more thermodynamically stable than the isomer 3Cat. Isomerization of 3Cat to 3Dit in solution was observed.

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Publication details

The article was received on 16 Oct 2017, accepted on 09 Nov 2017 and first published on 10 Nov 2017


Article type: Communication
DOI: 10.1039/C7DT03891G
Citation: Dalton Trans., 2017, Accepted Manuscript
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    Regioisomerism in coordination chemistry: oxidative addition of bifunctional ligand to palladium, stabilized with 1,2-bis(diphenylphosphino)ethane

    K. A. Martyanov, V. K. Cherkasov, G. A. Abakumov, E. V. Baranov, A. Shavyrin and V. Kuropatov, Dalton Trans., 2017, Accepted Manuscript , DOI: 10.1039/C7DT03891G

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