76287-53-1

Upstream product

• 17049-49-9 octylmagnesium bromide 
• 1122-91-4 4-bromo-benzaldehyde 
• 76287-56-4 1-(4-bromophenyl)-1-hydroxynonane 
• 76287-61-1 1-Bromo-4-((E)-non-1-enyl)-benzene 
• 51554-94-0 4-bromo-1-(1-nonyl)benzene 
• 76287-48-4 Tris-(4-nonyl-phenyl)-phosphane 

Relevant academic research and scientific papers

Preparation and Properties of Tertiary p-Alkylarylphosphines containing Straight-chain Alkyl Groups

A series of tris(p-alkylaryl)phosphines with straight-chain alkyl groups, P(p-C6H4-CnH2n+1)3 where n=2-9, have been prepared by reaction of phosphorus trichloride with the Grignard reagent derived from the corresponding p-bromoalkylbenzene.When n=2 and 3 the phosphines are crystalline solids, but for n>3 they are viscous oils up to n=9, which is a waxy solid.The phosphines have been characterised by microanalysis, and i.r., 1H and 31P n.m.r., and mass spectrometry.The p-substituted-arylphosphines are more sensitive than triphenylphosphine to air; aerial oxidation converts them exclusively into the corresponding phosphine oxides, in contrast to trialkylphosphines which are oxidised to a complex mixture of products.The complexing ability of the new phosphines (PAr3) is demonstrated by their ready displacement of 1,5-cyclo-octadiene (cod) from (M=Pd and Pt) to yield trans- and cis-, respectively.