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US 10,328,423 B2Granted
Perfluoroalkyl group-containing bismuth compounds as lewis acid catalysts
AssigneeMerck Patent GmbH
InventorsBerthold Theo Hoge, Sven Joerg-Ruediger August Solyntjes, Anne Julia Bader, Nikolai Ignatiev
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Abstract
The invention relates to perfluoroalkyl group-containing bismuth compounds as Lewis acid catalysts, to specific compounds, and to the method for the production thereof.
Claims17
A compound, which is of formula (I)
- (CmF2m+1)nBiX3-n (I),
- wherein
- m in each case, independently of one another, denotes 2, 3 or 4;
- n denotes 1 or 2 and
- X denotes F, Cl, Br or OSO2CF3,
- or
- which is of formula (IIIa) or (IIIb)
- ArBi(CmF2m+1)2 (IIIa),
- Ar2Bi(CmF2m+1) (IIIb),
- wherein
- m in each case, independently of one another, denotes 2, 3 or 4 and
- Ar in each case, independently of one another, denotes an aryl group having 6 to 10 C atoms, which may be substituted.
9 more elements
A process for preparing the compound of formula (I),
- (CmF2m+1)nBiX3-n (I),
- wherein
- m in each case, independently of one another, denotes 2, 3 or 4;
- n denotes 3 and
- X denotes F, Cl, Br or OSO2CF3,
- comprising reacting a compound of formula (II)
- (CmF2m+1)Li (II),
- wherein
- m denotes 2, 3 or 4,
- with bismuth trichloride, bismuth tribromide or bismuth tristriflate,
- where the conditions of the reaction are that both the water content and the oxygen content are a maximum of 100 ppm.
8 more elements
Dependencies are inferred from the claim text.