Preparation of oxirane compounds with titanasilsesquioxane catal

Details Preparation of oxirane compounds with titanasilsesquioxane catal Preparation of oxirane compounds with titanasilsesquioxane catal

1997-01-15

1998-05-12

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549523, C07D30114

Patent

active

057507414

ABSTRACT:
A process for the preparation of an oxirane compound by reacting an olefinically unsaturated hydrocarbon with an organic hydroperoxide, in the presence of a catalyst comprising a titanasilsesquioxane of the general formula TiLR.sub.7 Si.sub.7 O.sub.12 and the structural formula ##STR1## wherein R is chosen from the group of cyclopentyl, cyclohexyl and cycloheptyl and L is chosen from the group of alkyl, cycloalkyl, alkylaryl, alkoxy, aryloxy, siloxy, amido and OH.

REFERENCES:
patent: 5374747 (1994-12-01), Saxton et al.
patent: 5466835 (1995-11-01), Nemeth et al.
Buys, I.E. et al, `Models of Surface-Confined metallocene Derivatives,` J. Mol. Catal., 1994, 86, pp. 309-318.
Winkhofer, N. et al, `Stable Silanetriols as Building Blocks for the Synthesis of Titanasilasesquioxanes-Model Compounds for Titanium-Doped Zeolites,` Angew. Chem. Int. Ed. Engl., 1994, 33(13), pp. 1352-1354.
Feher, F.J. et al, `Silasesquioxanes as Ligands in Inorganic and Organometallic Chemistry,` Polyhedron, 1995, 14(22), pp. 3239-3253.

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