Ld. Field et Ip. Thomas, SYNTHESIS OF NEW BIDENTATE PHOSPHINE-LIGANDS CONTAINING SATURATED PHOSPHORUS-HETEROCYCLES, Inorganic chemistry, 35(9), 1996, pp. 2546-2548
The synthesis of two ethylene-bridged bidentate phosphines is describe
d. 1,2-Bis(1-phospholano)ethane ((C4H8)PCH2CH2P(C4H8)) was synthesized
by the stepwise addition of 2,2-dioxo-1,3,2-dioxathiepane to H2PCH2CH
2PH2. 1,2-Bis(1-phosphorinano)ethane ((C5H10)PCH2CH2P(C5H10)) was synt
hesized by the novel photochemical addition of 1,4-pentadiene to H2PCH
2CH2PH2. These bis(phosphines) form two-to-one complexes of the form F
e(PP)(2)Cl-2 when added to iron(II) chloride.