Selective Transfer Semihydrogenation of Alkynes Catalyzed by an Iron PCP Pincer Alkyl Complex.

ABSTRACT: Two bench-stable Fe(II) alkyl complexes [Fe(κ³PCP-PCP-iPr)(CO)₂(R)] (R = CH₂CH₂CH₃, CH₃) were obtained by the treatment of [Fe(κ³PCP-PCP-iPr)(CO)₂(H)] with NaNH₂ and subsequent addition of CH₃CH₂CH₂Br and CH₃I, respectively. The reaction proceeds via the anionic Fe(0) intermediate Na[Fe(κ³PCP-PCP-iPr)(CO)₂]. The catalytic performance of both alkyl complexes was investigated for the transfer hydrogenation of terminal and internal alkynes utilizing PhSiH₃ and iPrOH as a hydrogen source. Precatalyst activation is initiated by migration of the alkyl ligand to the carbonyl C atom of an adjacent

SUBMITTER: Schratzberger H 

PROVIDER: S-EPMC10629171 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature