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Synthesis 2003(17): 2720-2724  
DOI: 10.1055/s-2003-42452
PAPER
© Georg Thieme Verlag Stuttgart · New York

Organophosphorus Compounds, Part 172; [1] The Formation of 1,3-1H-Diphospholes via Lithiumalkyl Adducts of 1,3,5-Triphosphabenzenes

Jörg Steinbach, Paul Binger*, Manfred Regitz*
Fachbereich Chemie, Universität Kaiserslautern, Erwin-Schroedinger-Strasse, 67663 Kaiserslautern, Germany
Fax: +49(631)2053921; e-Mail: regitz@rhrk.uni-kl.de;
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Publication History

Received 22 July 2003
Publication Date:
23 October 2003 (online)

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Abstract

The organolithium adducts 2 and 3 of 1,3,5-triphosphabenzenes 1 release phosphinidene elements when heated. The resulting 1,3-diphospholide ions 4 react readily with primary alkyl halides with the formation of the 1,3-1H-diphospholes 5 and 6.

Key words

alkyl halides - diphospholes - heterocycles - organometallic reagents - phosphorus

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