294183-87-2Relevant academic research and scientific papers
Homometathesis and cross-metathesis coupling of phosphine-borane templates with electron-rich and electron-poor olefins
Dunne, Katherine S.,Lee, Sarah E.,Gouverneur, Véronique
, p. 5246 - 5259 (2007/10/03)
Ruthenium-catalysed olefin cross-metathesis can be used to synthesise structurally diverse acyclic phosphines protected as their borane complexes. Homodimerisations have been investigated and proved successful only for the allyl-substituted borane-protected phosphines. In the presence of various olefinic partners, allyl-substituted P templates reacted in cross-couplings to give predominantly the E products but traces of the Z isomers were always detected in the crude reaction mixtures. In contrast, cross-metathesis of vinyl-substituted phosphine boranes took place with exclusive E-selectivity. Although the conversions were consistently very good to excellent, the yields of purified products were often significantly lower suggesting that some of the newly formed compounds are prone to decompose upon purification.
Novel synthesis of borane complexes of cyclic phospanes using ruthenium-catalyzed olefin metathesis
Schuman, Marc,Trevitt, Michael,Redd, Andrew,Gouverneur, Veronique
, p. 2491 - 2493 (2007/10/03)
Grubbs' catalyst [Cl2Ru{P(C2H11)2}2 = CHPh] can be used to synthesize borane complexes of cyclic phosphanes by ring-closing metathesis reactions. This strategy has been applied, for example, to the preparation of a borane-protected bisphosphanes [Eq. (1)].
