Expanding the chemistry of ring-fused 1, 4-diphosphinines by stable mono anion formation. Issue 96 (16th November 2018)

• Record Type: Journal Article
• Authors: Begum, Imtiaz; Schnakenburg, Gregor; Kelemen, Zsolt; Nyulászi, László; Boeré, René. T.; Streubel, Rainer
• Is Part Of: Chemical communications. Volume 54:Issue 96(2018)
• Page Start: 13555
• Page End: 13558
• Publication Date: 2018-11-16
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc08158a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Synthesis of a novel tricyclic 1, 4-diphosphinineI and, subsequently, of a stable anionic 1, 4-diphosphinineII is reported; whileII can be used as precursor for 1, 4-disubstitution products, its oxidation leads to the formation of the P–P coupling productIII . Abstract : A new sulfur-enriched tricyclic 1, 4-diphosphinine (2 ) was synthesized and novel reactivity studies on the phosphorus heterocycle were performed: a weak anionic nucleophile (KHMDS) adds selectively thus forming a stable anionic 1, 4-diphosphinine derivative (3b ) which was fully characterized. The substitution potential of3b was demonstrated using Ph2 PCl to give4b, while oxidation of3b using elemental iodine furnished cleanly the P–P coupling product5 .