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Updated: May 17, 2025

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Synthesis and Application of PN-Supported Mn(I) Carbonyl Alkyl Complexes
Claudia Rabijasz1, Stefan Weber1, Berthold Stöger2
1Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, A-1060 Wien, Austria.
Abstract:
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 fac-[Mn(PN)(CO)3Br] are obtained from the reaction of Mn(CO)5Br with the bidentate ligand PN = R2N(CH2)2PR'2, where R = Me, Et, and pyrrolidine and R' = Ph, iPr, and Cy. Treatment of fac-[Mn(PN)(CO)3Br] with AgOTf yields fac-[Mn(PN)(CO)3OTf]. Upon reaction of fac-[Mn(PN)(CO)3OTf] with MeLi (R' = alkyl) or MeMgCl (R' = aryl), fac-[Mn(PN)(CO)3Me] is formed. fac-[Mn(PCyNMe)(CO)3Me] and fac-[Mn(PPhNMe)(CO)3Me] are identified as the best catalysts for the dimerization of phenylacetylene and the hydroboration of 4-chlorostyrene, respectively.
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