ISSN:
0044-2313
Keywords:
Diphosphene dimerization
;
Ylide substituents, Cyclotetraphosphine structure, 31P-NMR spectra analysis, Transanular electron lone pair interaction
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
1,3-Bis(triphenylphosphonium-ylidyl)cyclotetraphosphinesThe title compounds 3a, b result from the condensation of the ylidyldichlorophosphines Ph3PCR—PCl2 1a, b (R = Me, 3-Tol) with phenyl bis(trimethylsilyl)phosphine 2. Analysis of the 31P-NMR spectra and the X-ray structure investigation of 3a demonstrate a folding of the four-membered ring and an all-trans orientation of the substituents.
Notes:
Die Titelverbindungen 3a, b entstehen durch Kondensation der Ylidyldichlorphosphane Ph3PCR—PCl2 1a, b (R = Me, 3-Tol) mit Phenyl-bis(trimethylsilyl)phosphan 2. Die Analyse der 31P-NMR-Spektren und die Röntgenstrukturbestimmung von 3a zeigen eine Faltung des Vierrings und all-transständige Substituenten.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19956210604
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