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US 2002/0177733 A1Published application
Manufacture of cyclic aliphatic acids and esters
OwnerRamzi Salehinventor
Life of this patent
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Abstract
Production of cyclic aliphatic acids and esters are achieved in high yield via carbonylation of a cyclic olefin with carbon monoxide in the presence of catalyst.
Claims18
A method for the production of cyclic aliphatic acids or esters comprising:
- a. reacting a cyclic olefin with carbon monoxide in the presence of an acid catalyst to produce a cyclic carbonium ion;
- and
- b. reacting said cyclic carbonium ion with water;
- thereby producing a cyclic aliphatic acid or ester.
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A method for the production of cyclopentane carboxylic acid or cyclopentane ester comprising the steps of:
- a. thermally cracking dicyclopentadiene to produce cyclopentadiene;
- b. reacting cyclopentadiene with hydrogen gas to produce a mixture of cyclopentane and cyclopentene;
- c. reacting said cyclopentene with carbon monoxide in the presence of an acid catalyst to produce a cyclic carbonium ion;
- d. reacting said cyclic carbonium ion with water thereby producing cyclopentane carboxylic acid or cyclopentane ester.
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Dependencies are inferred from the claim text.