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US 2002/0161253 A1Published application
Synthesis of bis (cyclopentadienyl) and bis (indenyl) ruthenium complexes
AssigneeBoulder Scientific Company
InventorsKarin A. Voll, Jeffrey M. Sullivan, Dawn A. Arkin, Fredric R. Askham
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Abstract
A process for preparing a cyclopentadienyl or indenyl ruthenium complex by treatment of a cyclopentadienyl or indenyl compound with ruthenium trichloride trihydrate and magnesium powder in an alkanol at 0° C. to −30° C. is described.
Claims7
A process for producing a cyclopentadienyl or an indenyl ruthenecene complex which comprises treating a cyclopentadienyl or an indenyl compound with ruthenium trichloride hydrate and magnesium powder.
The process which comprises:
- (i) treating a C2 to C5 monoalkyl cyclopentadiene with ruthenium trichloride hydrate and magnesium powder,
- wherein said treating is accomplished in the presence of ethanol and
- wherein said treating takes place at a temperature of 0° C. and −30° C. to produce a first reaction mixture;
- (ii) agitating said first reaction mixture at about 10° C. and 15° C. for a time period appropriate to complete the reaction
- wherein a second reaction mixture comprising a slurry of C2 to C5 ruthenecene is produced;
- (iii) filtering said second reaction mixture to provide a cake comprising a C2 to C5 ruthenecene;
- and
- (iv) recrystallizing said C2 to C5 ruthenecene present in said cake
- wherein a purified C2 to C5 ruthenecene product is obtained.
6 more elements
Dependencies are inferred from the claim text.