The quest for unligated oxaphosphiranes with phosphorus in different coordination numbers. Issue 10 (5th January 2023)

• Record Type: Journal Article
• Authors: Faßbender, Jan; Volk, Niklas; García Alcaraz, Antonio; Balasubramaniam, Selvakumar; Espinosa Ferao, Arturo; Streubel, Rainer
• Is Part Of: Chemical communications. Volume 59:Issue 10(2023)
• Page Start: 1285
• Page End: 1288
• Publication Date: 2023-01-05
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc05730a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : The first oxaphosphirane I has been synthesized. Reactions with borane (II ) and oxidizing reagents (II, III ) are reported, together with theoretical studies providing insight into ring strain energy, oxidation pathways and ring isomerization. Abstract : After more than 160 years of oxirane (epoxide) chemistry, the first derivative of a phosphorus analogue, namely oxaphosphirane, has been synthesized. Reactions with borane sulfane, a peroxy compound and elemental sulfur, as well as tetra-chloro- ortho -benzoquinone (TOB) reveal a significant destabilization upon increasing the coordination number at phosphorus from σ 3 to σ 4, thus somehow supporting previous reports on such fleeting species. Theoretical studies provide insight into ring strain energy, ring/ring interconversion and the oxidation pathways.