182366-92-3Relevant academic research and scientific papers
Transition metal stannyl complexes. 11.1 Chelated ((phosphinoalkyl)stannyl)iron complexes by intramolecular oxidative addition of tin-phenyl or tin-methyl groups
Schubert, Ulrich,Grubert, Stefanie
, p. 4707 - 4713 (1996)
Reaction Of Fe2(CO)9 with Ph2P(CH2)nSnR2R' (n = 2, R' = Ph, SnR2 = SnPh2, SnPhMe, R' = Me, SnR2 = SnMe2; n = 1, 3, SnR2R' = SnPh3) results in the formation of (CO)5-xFe[PPh2(CH2)nSnR 2R']x (x = 1, 2). Upon UV irradiation, the chelated (phosphinoalkyl)-stannyl complexes (CO)3(R')FePPh2(CH2)nSnR2 are obtained by intramolecular oxidative addition of the Sn-R' group. The complexes mer-(CO)3(H)(R'3Si)FePPh2(CH2) 3SnPh3 (SiR'3 = SiMePh2, Si(OMe)3) are formed at -50°C from (CO)4Fe(H)SiR'3 and Ph2P(CH2)2SnPh3. While the SiMePh2 derivative is converted to the chelated complex (CO)3(Ph)FePPh2-(CH2)2SnPh 2 by HSiMePh2 elimination upon heating, the Si(OMe)3 derivative does not give the intramolecular oxidative addition. Photochemical reaction of (CO)3(Ph)FePPh2-(CH2)2SnPh 2 with Ph2P(CH2)2SnPh3 gives the substitution product (CO)2(Ph)Fe[PPh2-(CH2)2SnPh 2]PPh2(CH2)2SnPh3. While a second oxidative addition to the iron center by the dangling SnPh3 group is not possible, the Sn-Ph group readily adds to a (Ph3P)2Pt fragment to give (CO)2(Ph)Fe[PPh2(CH2)2SnPh 2]PPh2(CH2)2SnPh 2Pt(Ph)(PPh3)2. The related complex il - (CO)3(H)[(MeO)3Si]FePPh2(CH2) 2SnPh2Pt(Ph)(PPh3)2 is similarly obtained from (CO)3(H)[(MeO)3-Si]FePPh2(CH2) 2SnPh3.
