Synthetic Route of 12150-46-8. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene
Substitution, cage functionalization, and oxidation of the charge-compensated triruthenium monocarbollide cluster complex [1-SMe 2-2,2-(CO)2-7,11-(mu-H)2-2,7,11-{Ru 2(CO)6}-closo-2,1-RuCB10H8]
The compound [1-SMe2-2,2-(CO)2-7,11-(mu-H) 2-2,7,11-{Ru2(CO)6}-closo-2,1-RuCB 10H8] 1a reacts with PMe3 or PCy3 (Cy = cyclo-C6H11) to give the structurally different species [1-SMe2-2,2-(CO)2-7,11-(mu-H) 2-2,7,11-{Ru2(CO)5-(PMe3)}-closo-2, 1-RuCB10H8] 4 and [1-SMe2-2,2-(CO) 2-11-(mu-H)-2,7,11-{Ru2(mu-H)(CO)5(PCy 3)}-closo-2,1-RuCB10H8] 5, respectively. A symmetrically disubstituted product [1-SMe2-2,2-(CO) 2-7,11-(mu-H)2-2,7,11-{Ru2(CO) 4(PMe3)2}-closo-2,1-RuCB10H 8] 6 is obtained using an excess of PMe3. In contrast, the chelating diphosphines 1,1?-(PPh2)2-Fe(eta-C 5H4)2 and 1,2-(PPh2) 2-closo-1,2-C2B10H10 react with 1a to yield oxidative-insertion species [1-SMe2-2,2-(CO) 2-11-(mu-H)-2,7,11-{Ru2(mu-H)(mu-[1?,1?- (PPh2)2-Fe(eta-C5H4) 2])(CO)4}-closo-2,1-RuCB10H8] 7 and [1-SMe2-2,2-(CO)2-11-(mu-H)-2,7,11-{Ru 2(mu-H)(CO)4(1?-2?-(PPh2) 2-closo-1?,2?-C2B10H 10)}-closo-2,1-RuCB10H8] 8, respectively. In toluene at reflux temperatures, 1a with ButSSBut gives [1-SMe2-2,2-(CO)2-7-(mu-SBut)-11-(mu-H)-2, 7,11-{Ru2(mu-H)(mu-SBut)(CO)4}-closo-2,1- RuCB10H8] 9, and with ButC?CH gives [1-SMe2-2,2-(CO)2-7-{mu:eta2-(E)-CH=C(H) But}-11-{mu:eta2-(E)-CH=C(H)But}-2,7,11- {Ru2(CO)5}-closo-2,1-RuCB10H8] 10. In the latter, two alkyne groups have inserted into cage B-H groups, with one of the resulting B-vinyl moieties involved in a C-H…Ru agostic bond. Oxidation of 1a with I2 or HgCl2 affords the mononuclear ruthenium complex [1-SMe2-2,2,2-(CO)3-closo-2,1-RuCB 10H10] 11. The Roysl Society of Chemistry 2005.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate