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US 4,288,613 AGranted
Cyclopentanone synthesis
AssigneeIowa State University Research Foundation, Inc.
InventorRichard C. Larock
Life of this patent
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Abstract
A method of synthesis of cyclopentanones comprising cyclizing a 4-pentenal, preferably under an ethylene atmosphere, in the presence of a catalytically effective amount of a cyclizing, rhodium(I) para-substituted triarylphosphine catalyst.
Claims8
A method of synthesis of cyclopentanones comprising:
- cyclizing a 4-pentenal in the presence of a catalytically effective amount of a cyclizing halo rhodium parasubstituted triarylphosphine catalyst and in the presence of a suitable organic solvent for said pentenal and catalyst.
Dependencies are inferred from the claim text.