Synthesis and Reaction of the First 1, 2‐Oxaphosphetane Complexes1. Issue 40 (27th August 2014)

• Record Type: Journal Article
• Authors: Kyri, Andreas Wolfgang; Nesterov, Vitaly; Schnakenburg, Gregor; Streubel, Rainer
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 40(2014)
• Page Start: 10809
• Page End: 10812
• Publication Date: 2014-08-27
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201404877
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>While P^V 1, 2‐oxaphosphetanes are well known from the Wittig reaction, their P^III analogues are still unexplored. Herein, the synthesis and reactions of the first 1, 2‐oxaphosphetane complexes are presented, which were achieved by reaction of the phosphinidenoid complex [Li(12‐crown‐4)(solv)][(OC)₅W{(Me₃Si)₂HCPCl}] with different epoxides. The title compounds appeared to be stable in toluene up to 100 °C, before unselective decomposition started. Acid‐induced ring expansion with benzonitrile resulted in selective formation of the first complex bearing a 1, 3, 4‐oxazaphosphacyclohex‐2‐ene ligand.</p> </abstract>