294618-78-3

Upstream product

• 154294-28-7 1-phenyl-2,5-dihydro-1H-phosphole-1-borane 
• 74-88-4 methyl iodide 
• 28278-54-8 1-phenyl-2,3-dihydro-1H-phosphole 
• 294183-94-1 (CH₂CHCH(CH₃))P(C₆H₅)(BH₃)(C₃H₅) 

Relevant academic research and scientific papers

Reactivity of allyl anions of allylphosphine-boranes towards electrophiles

The reactivity of mesomeric carbanions derived from allylphosphine-boranes varies as a function of electrophile. Small sp3-electrophiles react predominantly at the α carbon atom whereas bulky sp3- electrophiles and carbonyl compounds react mainly at the γ carbon. In the case of electron-deficient aldehydes reduction of carbonyl group and formation of the corresponding alcohols is observed. This is attributed to the weakly reducing properties of carbanions derived from allylphosphine-boranes, whose mesomeric form resembles the structure of a modified borohydride. ARKAT-USA, Inc.

Novel synthesis of borane complexes of cyclic phospanes using ruthenium-catalyzed olefin metathesis

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)].