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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 186, 2011 - Issue 4: 18th International Conference on Phosphorus Chemistry (ICPC2010)
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I. Synthesis and Applications in Catalysis

The Reaction of Cyclopropenylphosphonium Bromides with Sodium Polyphosphides as an Advanced Method of Synthesis of Sodium 1,2-Diphosphacyclopentadienides: Scope and Limitations

Il’ya Bezkishko A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, Kazan, Russia
,
Vasili Miluykov A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, Kazan, Russia
,
Oleg Sinyashin A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, Kazan, Russia
&
Evamarie Hey-Hawkins Institute of Inorganic Chemistry, Universität Leipzig, Leipzig, Germany
Pages 657-659 | Received 21 Jun 2010, Accepted 09 Jul 2010, Published online: 25 Apr 2011
 
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Abstract

A new ring expansion reaction based on the interaction between 1,2,3-triarylcyclopropenylphosphonium bromide (1) and sodium polyphosphides gives sodium 3,4,5-triaryl-1,2-diphosphacyclopentadienides (2) containing various substituents in the para-position of the aryl groups with a high yield. However, this reaction of trialkylcyclopropenylphosphonium bromide (i.e., tri(tert-butyl)- or triisopropylcyclopropenylphosphonium bromide) does not result to the formation of sodium 1,2-diphosphacyclopentadienides.

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