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Updated: Mar 11, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
Bismuth Perfluoroalkylphosphinates: New Catalysts for Application in Organic Syntheses
Sven Solyntjes1, Beate Neumann1, Hans-Georg Stammler1
1Centrum für Molekulare Materialien, Fakultät für Chemie, Anorganische Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.
Abstract:
Commercially available BiPh3 was treated with perfluoroalkylphosphinic acids [for example, (C2 F5 )2 P(O)OH] to generate novel, highly Lewis acidic bismuth(III) perfluoroalkylphosphinates of the type Phx Bi[RF2 PO2 ]3-x (x=0, 1, 2) (RF =-C2 F5 , -C4 F9 ). The first bismuth(V) perfluoroalkylphosphinate, Ph3 Bi[(C2 F5 )2 PO2 ]2 , was synthesized from Ph3 BiCl2 and Ag[(C2 F5 )2 PO2 ]. Examples for the successful application of the catalytically active bismuth(III) and bismuth(V) phosphinates in carbon-carbon bond forming reactions, such as Friedel-Crafts acylation and alkylation, Diels-Alder, Strecker and Mannich reaction, are presented.
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