HRH[P(OPH)(3)](4) AS A HYDROGENATION AND ISOMERIZATION CATALYST

被引：22

作者：

COOLEN, HKAC

NOLTE, RJM

VANLEEUWEN, PWNM

机构：

[1] UNIV AMSTERDAM,JH VANT HOFF INST,DEPT ANORGAN CHEM,1018 WV AMSTERDAM,NETHERLANDS

[2] UNIV NIJMEGEN,NIJMEGEN SON RES CTR,DEPT ORGAN CHEM,6525 ED NIJMEGEN,NETHERLANDS

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1995年 / 496卷 / 02期

关键词：

RHODIUM; HYDROGENATION CATALYST; ISOMERIZATION CATALYST;

D O I：

10.1016/0022-328X(95)05454-W

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation and reactions of [HRh[P(OPh)(3)](4)] (2) have been investigated. The metallation product [(PhO)(2)(C6H4OP)Rh[P(OPh)(3)](3)] (4) has been characterized by P-31 NMR spectroscopy. Catalytic hydrogenation of alkenes with 2 depends strongly on the amount of extra ligand added and the substrate (1-hexene, Z,E-2-hexene and allylbenzene). Without added phosphite, traces of [(HRh[P(OPh)(3)](2))(2)] are the actual catalyst. Under these conditions the reaction is zero order in substrate. The kinetics are completely different when extra triphenyl phosphite is present. Complex 2 behaves as a catalyst with a character in between that of ClRh(PPh(3))(3) and cationic Rh(diphosphine)(+).

引用

页码：159 / 168

页数：10

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