73727-00-1

Upstream product

• 593-54-4 methylphosphine 
• 57137-55-0 3-(diphenylphosphino)propyl chloride 
• 829-85-6 diphenylphosphane 
• 114211-39-1 (3-Diphenylphosphanyl-propyl)-methyl-phosphinic acid isopropyl ester 

Downstream Products

• 83763-07-9 C₂₁H₃₁P₃ 
• 142132-81-8 C₂₇H₄₃P₃ 
• 114211-43-7 {2-[(3-Diphenylphosphanyl-propyl)-methyl-phosphanyl]-ethyl}-methyl-phosphinic acid isopropyl ester 
• 73731-95-0 Bis<3-(diphenylphosphino)propyl>methylphosphin 

Relevant academic research and scientific papers

Oligophosphaalkanes, XVII. Functionalized Tri-, Tetra- and Pentaphosphaalkanes with the Donor Sequence P-C-C-P and P-C-C-C-P

Starting with the secondary phosphanes R2PH (R = Me, Ph, iPr) and the vinyl- or allylmethylphosphinic acid isopropylesters, the triphosphaalkanes R2P-3-PMe-2-PMeH containing one terminal PH-group have been synthesized in a multiple step synthesi

Oligophosphine Ligands, I Convenient Syntheses of the Trimethylene-linked Triphosphines RP2 and their Precursors Ph2P(CH2)3P(H)R (R=Ph, Me)

The secondary-tertiary diphosphines Ph2P(CH2)3P(H)Ph (2) and Ph2P(CH2)3P(H)Me (3) have been prepared from Ph2P(CH2)3Cl (1) and NaP(H)Ph or LiP(H)Me, respectively.Metallation of 2 and 3 with n-butyl lithium and further reaction of the lithio-derivatives with one equivalent of 1 yields PhP2 (4) and MeP2 (5).The tritertiary phosphines 4 and 5 have likewise been obtained from RPLi2 (R=Ph, Me) and two equivalents of 1.The synthesis of 4 from PhPCl2 and two equivalents of the Grignard reagent of 1 is also reported.Each of the phosphines 1-5 was characterized by NMR and mass spectroscopy. - Keywords: Secondary-tertiary Diphosphines, Tritertiary Phosphines, Preparation, NMR Spectra, Mass Spectra