Method for preparing –-(4-isobutylphenyl)propionic acid or...

Details Method for preparing –-(4-isobutylphenyl)propionic acid or... Method for preparing –-(4-isobutylphenyl)propionic acid or...

C - Chemistry, Metallurgy

07

C

260/478.7, 260/5

C07C 47/228 (2006.01) C07C 2/66 (2006.01) C07C 2/72 (2006.01) C07C 5/333 (2006.01) C07C 6/12 (2006.01) C07C 45/50 (2006.01) C07C 51/14 (2006.01) C07C 51/235 (2006.01) C07C 57/30 (2006.01) C07C 69/612 (2006.01)

Patent

CA 1334103

A method for preparing .alpha.-(4- isobutylpheny)propionic acid or its precursor is here disclosed which comprises a step A of forming p- isobutylstylene from p-isobutylethylbenzene, which may be prepared by alkylating isobutylbenzene or 4- ethyltoluene with ethylene or propylene, and a step B of forming .alpha.-(4-isobutylphenyl)propionaldehye from p- isobutylstyrene or step C of forming .alpha.-(4- isobutylphenyl)propionic acid or its alkyl ester from p-isobutylstylene.

603735

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