Effects of diminished steric protection at phosphorus on stability and reactivity of oxaphosphirane complexes. Issue 28 (28th June 2018)

• Record Type: Journal Article
• Authors: Fassbender, J.; Schnakenburg, G.; Espinosa Ferao, A.; Streubel, R.
• Is Part Of: Dalton transactions. Volume 47:Issue 28(2018)
• Page Start: 9347
• Page End: 9354
• Publication Date: 2018-06-28
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt01979g
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Facile synthesis of oxaphosphirane complexesII, 1, 3, 2-dioxaphosphol-4-eneIII and 1, 3, 2-dioxaphospholane complexesIV from Li/Cl phosphinidenoid complexesI is described. Abstract : Readily available P - t Bu substituted Li/Cl phosphinidenoid complexes react with carbonyl compounds to furnish sterically almost unhindered oxaphosphirane complexes that reveal new and surprisingly facile intra- and intermolecular ring expansion reactions. 1, 3, 2-Dioxaphosphole complex formation is explained by DFT calculations through diastereoselective carbonyl group-induced ring cleavage of an oxaphosphirane intermediate.