Pentaphosphaferrocene-mediated Synthesis of Asymmetric Organo-phosphines Starting from White Phosphorus
Overview
Authors
Affiliations
The synthesis of phosphines is based on white phosphorus, which is usually converted to PCl, to be afterwards substituted step by step in a non-atomic efficient manner. Herein, we describe an alternative efficient transition metal-mediated process to form asymmetrically substituted phosphines directly from white phosphorus (P). Thereby, P is converted to [Cp*Fe(η-P)] (1) (Cp* = η-C(CH)) in which one of the phosphorus atoms is selectively functionalized to the 1,1-diorgano-substituted complex [Cp*Fe(η-PR'R″)] (3). In a subsequent step, the phosphine PR'R″R‴ (R' ≠ R″ ≠ R‴ = alky, aryl) (4) is released by reacting it with a nucleophile R‴M (M = alkali metal) as racemates. The starting material 1 can be regenerated with P and can be reused in multiple reaction cycles without isolation of the intermediates, and only the phosphine is distilled off.
Hu J, He H, Xu M, Qi X, Fu C, Yi H Natl Sci Rev. 2025; 12(3):nwaf008.
PMID: 40041030 PMC: 11879454. DOI: 10.1093/nsr/nwaf008.
Franz R, Gal D, Bruhn C, Kelemen Z, Pietschnig R Adv Sci (Weinh). 2023; 11(11):e2306805.
PMID: 38161225 PMC: 10953586. DOI: 10.1002/advs.202306805.
Reichl S, Riedlberger F, Piesch M, Balazs G, Seidl M, Scheer M Chem Sci. 2023; 14(26):7285-7290.
PMID: 37416701 PMC: 10321501. DOI: 10.1039/d3sc01488f.
Snapshots of sequential polyphosphide rearrangement upon metallatetrylene addition.
Sun X, Hinz A, Schulz S, Zimmermann L, Scheer M, Roesky P Chem Sci. 2023; 14(18):4769-4776.
PMID: 37181779 PMC: 10171192. DOI: 10.1039/d3sc00806a.
Novel synthetic route for (parent) phosphetanes, phospholanes, phosphinanes and phosphepanes.
Reichl S, Balazs G, Scheer M Chem Sci. 2023; 14(14):3834-3838.
PMID: 37035692 PMC: 10074431. DOI: 10.1039/d3sc00580a.