134152-64-0Relevant academic research and scientific papers
Phosphanediyl transfer from inversely polarized phosphaalkenes R 1P=C(NMe2)2 (R1 = tBu, Cy, Ph, H) onto phosphenium complexes [(η5-C5H 5)(CO)2M=P(R2)R3] (R2 = R3 = Ph; R2 = tBu, R3 = H; R2 = Ph, R3 = N(SiMe3)2
Weber,Noveski,Stammler,Neumann
, p. 994 - 999 (2008/10/09)
Reaction of the freshly prepared phosphenium tungsten complex [(η5-C5H5)(CO)2W=PPh 2] (3) with the inversely polarized phosphaalkenes RP=C(NMe 2)2 (1) (a: R = tBu; b: Cy; c: Ph) led to the η2-diphosphanyl complexes [(η5-C5H 5)(CO)2W-P(R)-PPh2] (9a-c) which were isolated by column chromatography as yellow crystals in 24-30% yield. Similarly, phosphenium complexes [(η5-C5H5)(CO) 2M=P(H)tBu] (M = W (6); Mo (8)) were converted into [(η5-C5H5)(CO)2MP(tBu)P(H)tBu] (M = W (11); Mo (12)) by the formal abstraction of the phosphanediyl [PtBu] from 1a. Treatment of [(η5-C5H5)(CO) 2W=P(Ph)N(SiMe3)2] (4) with HP=C(NMe 2)2 (1d) gave rise to the formation of yellow crystalline [(η5-C5H5)(CO)2W-P(H)-P(Ph) N(SiMe3)2] (10). The products were characterized by elemental analyses and spectra (IR, 1H, 13C-, 31P-NMR, MS). The molecular structure of compound 10 was elucidated by an X-ray diffraction analysis.
