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Synthesis and transition metal chemistry of new bromo- and alkyl substituted phosphinite ligands
被引:2
|作者:
Naik, Susmita
[1
]
Durganna, Nallbothula
[1
]
Mobin, Shaik M.
[2
]
Mague, Joel T.
[3
]
Balakrishna, Maravanji S.
[1
]
机构:
[1] Indian Inst Technol, Dept Chem, Phosphorus Lab, Bombay 400076, Maharashtra, India
[2] Indian Inst Technol, Natl Single Crystal Xray Diffract Facil, Bombay 400076, Maharashtra, India
[3] Tulane Univ, Dept Chem, New Orleans, LA 70118 USA
来源:
关键词:
Phosphinite;
Ruthenium;
Palladium;
Gold complexes;
Chloro-bridged dimer;
Crystal structure;
CROSS-COUPLING REACTIONS;
HIGH-ACTIVITY CATALYSTS;
PALLADIUM(II) COMPLEXES;
NICKEL-COMPLEXES;
ARYL CHLORIDES;
C-C;
SUZUKI;
REACTIVITY;
BIS(PHOSPHINITE);
OLIGOMERIZATION;
D O I:
10.1016/j.poly.2012.02.016
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Ligands Ph2P(OAr) (Ar = 2,4,6-C6H2Br3, 1; Ar = C6H3(o-OMe)(p-C3H6), 2) were prepared by treating PPh2CI with tribromo phenol and eugenol, respectively, in good yields. The reaction of Ph2P(OAr) with Pd(COD)Cl-2] in 2:1 molar ratio yielded trans-[Pd{PPh2(OAr)}Cl-2] (4) and cis-[Pd{PPh2(OAr)}Cl-2] (5), respectively. The chloro-bridged dipalladium complex [Pd-2{PPh2(OAr)}(2)Cl-4 (6) was obtained in the 11 reaction between 2 and [Pd(COD)Cl-2], along with 5 as a minor product. Mononuclear complexes, [Au {PPh2(OAr)}Cl] (Ar = 2,4,6-C6H2Br3, 7; Ar = C6H3(o-OMe](p-C3H5), 8) and [(Ru(eta(6)-p-cym){PPh2(OAr)Cl (2)} (9) were prepared by reacting ligands 1 and 2 with [AuCl(SMe2)] and [(Ru(eta(6)-p-cym)Cl-2](2), respectively. All the complexes were characterized by P-31. H-1 NMR and elemental analyses data. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:97 / 102
页数:6
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