Modelling the active sites of heterogeneous titanium epoxidation catalysts using titanium silasequioxanes: Insight into specific factors that determine leaching in liquid-phase processes

被引：123

作者：

Abbenhuis, HCL

Krijnen, S

vanSanten, RA

机构：

[1] Schuit Institute of Catalysis, Eindhoven University of Technology, 5600 MB Eindhoven

来源：

CHEMICAL COMMUNICATIONS | 1997年 / 03期

关键词：

D O I：

10.1039/a607935k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Active catalysts for the epoxidation of alkenes by tert-butyl hydroperoxide are provided by silasesquioxane titanium(IV) derivatives; a non-leaching catalyst, not prone to irreversible protic cleavage of its siloxy functions by the oxidizing agent, contains a terdentate silasesquioxane ligand.

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收藏

页码：331 / 332

页数：2

相关论文

共 15 条

[1]

ABBENHUIS HCL, 1996, J CHEM SOC CHEM COMM, P1941

[2]

[Anonymous], [No title captured]

[3] MODELS OF SURFACE-CONFINED METALLOCENE DERIVATIVES [J].

BUYS, IE ;

HAMBLEY, TW ;

HOULTON, DJ ;

MASCHMEYER, T ;

MASTERS, AF ;

SMITH, AK .

JOURNAL OF MOLECULAR CATALYSIS, 1994, 86 (1-3) :309-318

[4]

CLERICI MG, 1991, APPL CATAL, V68, P249

[5] EPOXIDATION OF LOWER OLEFINS WITH HYDROGEN-PEROXIDE AND TITANIUM SILICALITE [J].

CLERICI, MG ;

INGALLINA, P .

JOURNAL OF CATALYSIS, 1993, 140 (01) :71-83

[6] REACTIONS OF INCOMPLETELY-CONDENSED SILSESQUIOXANES WITH PENTAMETHYLANTIMONY - A NEW SYNTHESIS OF METALLASILSESQUIOXANES WITH IMPORTANT IMPLICATIONS FOR THE CHEMISTRY OF SILICA SURFACES [J].

FEHER, FJ ;

BUDZICHOWSKI, TA ;

RAHIMIAN, K ;

ZILLER, JW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (10) :3859-3866

[7] SILASESQUIOXANES AS LIGANDS IN INORGANIC AND ORGANOMETALLIC CHEMISTRY [J].

FEHER, FJ ;

BUDZICHOWSKI, TA .

POLYHEDRON, 1995, 14 (22) :3239-3253

[8] THE INCORPORATION OF TRANSITION-METALS INTO POLYHEDRAL OLIGOSILSESQUIOXANE POLYMERS [J].

HADDAD, TS ;

LICHTENHAN, JD .

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS, 1995, 5 (03) :237-246

[9]

HUTTER R, 1995, J CHEM SOC CHEM COMM, P163

[10] HETEROGENEOUS CATALYSTS OBTAINED BY GRAFTING METALLOCENE COMPLEXES ONTO MESOPOROUS SILICA [J].

MASCHMEYER, T ;

REY, F ;

SANKAR, G ;

THOMAS, JM .

NATURE, 1995, 378 (6553) :159-162