In Memoriam Harald Schäfer

Silylphosphanes: Developments in Phosphorus Chemistry

“…The subsequent reaction with AlCl 3 proceeds similar to (33). 38 LiAl(PHMe) 4 cannot be obtained from LiAlH 4 and MePH 2 ; the only product obtained even after long reaction times is LiAlH(PHMe) 3 . 39 The above-mentioned aluminates are soluble in diglyme and triglyme.…”

“…The PHMe-containing silylphosphanes were obtained only in yields between 55 and 66%, because additionally MePH 2 and a disilylphosphane of the type (R 3 -Si) 2 PMe were formed by a dismutation process as shown in (38).…”

“…Such dismutations proceed preferably in the reaction mixture; the isolated pure compounds were found to be clearly more stable. 38 NMR data of the mentioned silylphosphanes with PH 2 and PHMe groups are listed in Table 1.…”

“…24 This difficulty can be avoided by using the milder reacting LiAl(PHMe) 4 . 38 The synthesis of this compound from LiPHMe and AlCl 3 can be transferred to that of monometalated silylphosphanes at -40 °C in diglyme according to (58).…”

Komplexchemie P‐reicher Phosphane und Silylphosphane. XI [1]. Bildung, Reaktionen und Strukturen von Chromcarbonylkomplexen aus Reaktionen von Li(THF)2[η2‐(tBu2P)2P] mit Cr(CO)5 · THF und Cr(CO)4 · NBD

“…Molekulen pro Elementarzelle; a = 8,844(4), b = 12,291(6), c = 14,411 (7) A, a! = 66,55 (2), p = 89,27 (2), y = 71,44 (2) After addition of 12-crown-4 1 with NBD * Cr(CO), in THF forms ,[Cr(CO),-(q2-('Bu,P),PJ1 7 (yellow crystals). 7 reacts with CH,COOH to 3 -which regenerates 7 with LiBuwith Cr(CO),THF to compound 2, with NBD * Cr(CO), in THF to 2 and 3 (ratio 1 : 1).…”