103457-52-9Relevant articles and documents
ORGANOPHOSPHORUS INTERMEDIATES XI. PREPARATION AND STEREOCHEMISTRY OF P-PHENYLATED 1,3-DIPHOSPHOLANE, 1,3- AND 1,4-DIPHOSPHORINANES, 1,4-DIPHOSPHEPANE AND 1,5-DIPHOSPHOCANE
Brooks, Peter J.,Gallagher, Michael J.,Sarroff, Adrian,Bowyer, Michael
, p. 235 - 248 (2007/10/02)
The eponymous 5-, 6- and seven-membered diphosphorous heterocycles have been prepared by alkylating diphosphides with α,ω-dihalides and separated into stereoisomers.One isomer of the 1,5-diphosphocane has been obtained by reduction of the dioxide with trichlorosilane.Stereochemistry is assigned on the basis of (1)H, (13)C, (31)P nmr, infrared and mass spectral studies and X-ray structure of the trans-1,4-diphosphorinane.Thermal inversion studies on the 5-, 6- and 7-membered heterocycles are described. Key words: Heterocycles; diphosphines; stereochemistry; nmr; inversion.
Synthesis and Properties of Open-Chain and Cyclic 1λ3,3λ3-Diphosphaalkanes RR'P-CH2-PR'R
Schmidbaur, Hubert,Schnatterer, Stefan
, p. 2832 - 2842 (2007/10/02)
Disecondary methylenediphosphanes R(X)PCH2P(X)R with their adjustable positive or negative polarity (X = H, Cl), which are useful building blocks for organophosphorus synthesis, were prepared by multi-step substitution of chlorine atoms in methylenebis(di
