- Oligophosphaalkanes, XVII. Functionalized Tri-, Tetra- and Pentaphosphaalkanes with the Donor Sequence P-C-C-P and P-C-C-C-P
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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
- Hietkamp, Sibbele,Lebbe, Thomas,Spiegel, Gerd U.,Stelzer, Othmar
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p. 177 - 185
(2007/10/02)
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- Oligophosphine Ligands, I Convenient Syntheses of the Trimethylene-linked Triphosphines RP2 and their Precursors Ph2P(CH2)3P(H)R (R=Ph, Me)
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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
- Arpac, Ertugrul,Dahlenburg, Lutz
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p. 146 - 152
(2007/10/02)
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