94477-91-5Relevant academic research and scientific papers
Oligophosphaalkanes, VI. Syntheses and NMR Spectroscopic Characterization of PH-functional Methylene Bridged Diphosphanes R2P-CH2-PRH and HRP-CH2-PRH
Hietkamp, Sibbele,Sommer, Herbert,Stelzer, Othmar
, p. 3400 - 3413 (2007/10/02)
1,3-Diphosphapropane, H2P-CH2-PH2 (1) was synthesized in about 40 percent yield by reduction of Cl2P-CH2-PCl2 with LiAlH4.The mono-, di-, and tri-substituted derivatives RHP-CH2-PH2 (R = iPr, CH2Ph, 3a, b) RHP-CH2-PHR (R = iPr, CH2Ph, tBu, 5a - c), R2P-CH2-PRH (R = Me, iPr, CH2Ph, 10b, 7a, b) are accessible using Cl2P-CH2-PCl2 as a starting material.A multiple stage synthesis based on MePCl2 affords the disecondary phosphane MeHP-CH2-PMeH (10d), which in contrast to reports given in the literature is thermally stable to at least 100 deg C.The 31P and 1H NMR spectra of 1 have been analyzed and simulated by use of computer programs.The structure of the phosphanes is discussed on the basis of their 1H, 31P, 31P, and 13C NMR spectra.
REACTION OF METHYLENE BRIDGED DIPHOSPHINES R2P-CH2-PRH AND RHP-CH2-PRH (R = Me, Pri, But, CH2-Ph) WITH TRANSITION METAL CARBONYLS
Stelzer, Othmar,Hietkamp, Sibbele,Sommer, Herbert
, p. 279 - 282 (2007/10/02)
The PH-functional methylene bridged diphosphines R2P-CH2-PRH and RHP-CH2-PHR have been synthesized using Cl2P-CH2-PCl2 as a starting material.On reaction with Fe2(CO)9 oxidative additon and cleavage of the P-C-P-skeleton occur yielding cluster compounds, e. g. (CO)9Fe3(RR'P-CH2-PR)H (R = Me, Pri, But, Ch2-Ph, R' = R or H) or (CO)9Fe3(μ3PR)(μ2PMeR)H.
