Synthesis and Application of PN-Supported Mn(I) Carbonyl Alkyl Complexes
This work comprises the synthesis and characterization of aminophosphine (PN)-derived Mn(I) carbonyl complexes and the preliminary investigation of their alkylated congeners for catalytic applications. The complexes <i>fac</i>-[Mn(PN)(CO)<sub>3</sub>Br] are obtained from the reaction of Mn(CO)<sub>5</sub>Br with the bidentate ligand PN = R<sub>2</sub>N(CH<sub>2</sub>)<sub>2</sub>PR'<sub>2</sub>, where R = Me, Et, and pyrrolidine and R' = Ph, <i>i</i>Pr, and Cy. Treatment of <i>fac</i>-[Mn(PN)(CO)<sub>3</sub>Br] with AgOTf yields <i>fac</i>-[Mn(PN)(CO)<sub>3</sub>OTf]. Upon reaction of <i>fac</i>-[Mn(PN)(CO)<sub>3</sub>OTf] with MeLi (R' = alkyl) or MeMgCl (R' = aryl), <i>fac</i>-[Mn(PN)(CO)<sub>3</sub>Me] is formed. <i>fac</i>-[Mn(P<sup>Cy</sup>N<sup>Me</sup>)(CO)<sub>3</sub>Me] and <i>fac</i>-[Mn(P<sup>Ph</sup>N<sup>Me</sup>)(CO)<sub>3</sub>Me] are identified as the best catalysts for the dimerization of phenylacetylene and the hydroboration of 4-chlorostyrene, respectively.
Authors
- Karl Kirchner (ORCID: https://orcid.org/0000-0003-0872-6159)
- Stefan Weber (ORCID: https://orcid.org/0000-0002-1777-0971)
- Berthold Stöger (ORCID: https://orcid.org/0000-0002-0087-474X)
- Claudia Rabijasz
Institutions
- TU Wien (AT)
Publication Details
- Journal
- Organometallics
- Published
- 2025-04-30
- DOI
- https://doi.org/10.1021/acs.organomet.5c00095
- Primary Topic
- Asymmetric Hydrogenation and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Austrian Science Fund