Synthesis of P‑CPh3 Substituted Spirooxaphosphirane Complexes: Steric Effects Dominate the Product Formation

The reaction of Li/Cl phosphinidenoid pentacarbonyltungsten complex 2 with cyclobutanone and 3-oxetanone led to new, stable spirooxaphosphirane complexes 3 and 4. In contrast, formation of O–H insertion products 5 and 6 was the preferred reaction pathway in case of cyclopentanone and cyclohexanone;...

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Bibliographic Details
Published in:Organometallics 2017-08, Vol.36 (15), p.2952-2955
Main Authors: Streubel, Rainer, Junker, Philip, Kyri, Andreas W, Schnakenburg, Gregor
Format: Article
Language:English
Online Access:Get full text
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Summary:The reaction of Li/Cl phosphinidenoid pentacarbonyltungsten complex 2 with cyclobutanone and 3-oxetanone led to new, stable spirooxaphosphirane complexes 3 and 4. In contrast, formation of O–H insertion products 5 and 6 was the preferred reaction pathway in case of cyclopentanone and cyclohexanone; this is in contrast to spirooxaphosphirane complex formation with sterically less demanding P-substituents. All complexes have been characterized by heteronuclear NMR spectroscopy and single crystal X-ray analysis in case of 3 and 4.
ISSN:0276-7333
1520-6041
DOI:10.1021/acs.organomet.7b00404