Unusual Rearrangement of an N-Donor-Functionalized N-Heterocyclic Carbene Ligand on Group 8 Metals.

Liang, Qiuming; Salmon, Andrew; Kim, Patrick Jinhyung; Yan, Linfan; Song, Datong

Liang, Qiuming; Salmon, Andrew; Kim, Patrick Jinhyung; Yan, Linfan; Song, Datong.

Afiliação

Liang Q; Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada.
Salmon A; Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada.
Kim PJ; Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada.
Yan L; Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada.
Song D; Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada.

J Am Chem Soc ; 140(4): 1263-1266, 2018 01 31.

Article em En | MEDLINE | ID: mdl-29320184

ABSTRACT

ABSTRACT

We report an unexpected rearrangement of a deprotonated picolyl-functionalized N-heterocyclic carbene (NHC) ligand from N,C-chelate to N,N-chelate in three-legged piano-stool Fe(II) and Ru(II) complexes. The reaction mechanism has been explored for one of the Fe(II) complexes. Experimental and computational studies suggest an unusual intermediate featuring a four-membered chelate ring, where the NHC and the α-carbon of one of the N-substituents coordinate to the Fe(II) center. A possible Fe-alkylidene intermediate has also been predicted by computations.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Am Chem Soc Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Canadá

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