A Highly Active Manganese Precatalyst for the Hydrosilylation of Ketones and Esters | Zendy

Tufan K. Mukhopadhyay | Zendy; Marco Flores | Zendy; Thomas L. Groy | Zendy; Ryan J. Trovitch | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

A Highly Active Manganese Precatalyst for the Hydrosilylation of Ketones and Esters

Author(s) -

Tufan K. Mukhopadhyay,

Marco Flores,

Thomas L. Groy,

Ryan J. Trovitch

Publication year - 2013

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja4116346

Subject(s) - chemistry , hydrosilylation , manganese , organic chemistry , catalysis , polymer chemistry , medicinal chemistry

The reduction of ((Ph2PPr)PDI)MnCl2 allowed the preparation of the formally zerovalent complex, ((Ph2PPr)PDI)Mn, which features a pentadentate bis(imino)pyridine chelate. This complex is a highly active precatalyst for the hydrosilylation of ketones, exhibiting TOFs of up to 76,800 h(-1) in the absence of solvent. Loadings as low as 0.01 mol % were employed, and ((Ph2PPr)PDI)Mn was found to mediate the atom-efficient utilization of Si-H bonds to form quaternary silane products. ((Ph2PPr)PDI)Mn was also shown to catalyze the dihydrosilylation of esters following cleavage of the substrate acyl C-O bond. Electronic structure investigation of ((Ph2PPr)PDI)Mn revealed that this complex possesses an unpaired electron on the metal center, rendering it likely that catalysis takes place following electron transfer to the incoming carbonyl substituent.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research