Synthesis of metal complexes and uses thereof
AssigneeNovomer, Inc.
InventorHan Lee
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Abstract
The present disclosure provides novel methods of making aluminum complexes with utility for promoting epoxide carbonylation reactions. Methods include reacting neutral metal carbonyl compounds with alkylaluminum complexes, such as the alkylaluminum complexes represented by Formula I, where Q is a nitrogen atom and the four Q groups are part of a single porphyrin ligand and Rq is selected from optionally substituted C1-12 aliphatic and optionally substituted aryl:
Claims10
A method for preparing an aluminum-based carbonylation catalyst and a ketone, comprising contacting a compound of formula I with a neutral metal carbonyl compound to produce the aluminum-based carbonylation catalyst and the ketone, wherein:
- the compound of formula I is
- the neutral metal carbonyl compound is dicobalt octacarbonyl, tetracobalt dodecacarbonyl, or a mixture thereof,
- the aluminum-based carbonylation catalyst is
- [Co(CO)4]−;
- and
- the ketone is
- wherein:
- Q is a nitrogen atom and the four Q groups are part of a single porphyrin ligand;
- and
- Rq is an optionally substituted C1-12 aliphatic group.
Dependencies are inferred from the claim text.