Jump to main content
Jump to site search

Issue 20, 2018
Previous Article Next Article

Synthesis and catalytic application of [PPP]-pincer iron, nickel and cobalt complexes for the hydrosilylation of aldehydes and ketones

Author affiliations

Abstract

A new synthetic strategy for the novel diphosphine-phosphine oxide ligand (1) (Ph2P-(C6H4))2P(O)H was designed. A series of [PPP]-pincer Fe, Ni, and Co complexes were prepared. All of them were formed by chelate-assisted P–H activation. Two metal hydrides [(Ph2P-(C6H4))2P(O)]Fe(H)(PMe3)2 (2) and [(Ph2P-(C6H4))2P(O)]Ni(H)(PMe3) (3) were obtained at room temperature. The combination of ligand 1 with Co(PMe3)4Me or Co(PMe3)4 afforded the same Co(I) complex [(Ph2P-(C6H4))2P(O)]Co(PMe3)2 (4) via P–H bond activation. The catalytic performance of the Fe, Ni, and Co complexes for the hydrosilylation of aldehydes and ketones was explored. At a catalyst loading of 2 mol%, complex 2 displayed the best catalytic activity for the hydrosilylation by using (EtO)3SiH as the hydrogen source under mild conditions. Complexes 2, 3, and 4 were characterized by spectroscopic methods and X-ray diffraction analysis.

Graphical abstract: Synthesis and catalytic application of [PPP]-pincer iron, nickel and cobalt complexes for the hydrosilylation of aldehydes and ketones

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Aug 2018, accepted on 03 Sep 2018 and first published on 06 Sep 2018


Article type: Paper
DOI: 10.1039/C8NJ03919D
Citation: New J. Chem., 2018,42, 16583-16590
  •   Request permissions

    Synthesis and catalytic application of [PPP]-pincer iron, nickel and cobalt complexes for the hydrosilylation of aldehydes and ketones

    X. Qi, H. Zhao, H. Sun, X. Li, O. Fuhr and D. Fenske, New J. Chem., 2018, 42, 16583
    DOI: 10.1039/C8NJ03919D

Search articles by author

Spotlight

Advertisements