The case of a μ₂-P aromatic phosphinine as a 4-electron donor forming σ- and π-three–center-two-electron bonds

Abstract

A profound insight into the electronic structures of occationally observed μ2-P bridging phosphinines remains limited. In this work, we present the isolation and X-ray crystallographic characterization of a dimeric Rh(I)...

Elimination reactions in 1,4-diphosphinine chemistry: mixed-valence intermediates and 1,1- vs. 1,4-elimination pathways

“…2–4 A plethora of functionalisation facets are known to date, ranging from 1,4-addition reactions to give II or III , 5–7 or 1,1-oxidations furnishing phosphoranes ( IV ) or phosphane oxides ( V ). 8–10 Research on phosphinines remains very active, 11,12 and a very interesting example of water addition was published by Müller in 2024 13 (Chart 1, bottom): pyridinyl-substituted VI reacted reversibly with H 2 O to form VII , but applying vacuum returned VI at ambient temperature.…”