Selective hydrosilylation of alkynes and ketones: contrasting reactivity between cationic 3-iminophosphine palladium and nickel complexes

Hosein Tafazolian; Robert Yoxtheimer; Rajendr S Thakuri; Joseph A R Schmidt

doi:10.1039/c7dt00832e

Selective hydrosilylation of alkynes and ketones: contrasting reactivity between cationic 3-iminophosphine palladium and nickel complexes

Dalton Trans. 2017 Apr 19;46(16):5431-5440. doi: 10.1039/c7dt00832e.

Authors

Hosein Tafazolian¹, Robert Yoxtheimer, Rajendr S Thakuri, Joseph A R Schmidt

Affiliation

¹ Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, College of Natural Sciences and Mathematics, The University of Toledo, 2801 W. Bancroft St. MS 602, Toledo, Ohio 43606-3390, USA. joseph.schmidt@utoledo.edu.

PMID: 28394388
DOI: 10.1039/c7dt00832e

Abstract

The catalytic hydrosilylation of alkynes and ketones has been explored utilizing palladium- and nickel(allyl) complexes supported by 3-iminophosphine ligands. Palladium and nickel demonstrated distinctly different reactivity profiles, with palladium proving very effective for the hydrosilylation of electron-deficient alkynes, while nickel excelled with ketones and internal alkynes. Additionally, in many cases, regioselective hydrosilylation was observed.