Process for the preparation of substituted phenylpropenes

Details Process for the preparation of substituted phenylpropenes Process for the preparation of substituted phenylpropenes

1997-12-22

1999-11-02

Jones, Dwayne C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570182, 570193, C07C 2200

Patent

active

059774193

ABSTRACT:
The invention relates to novel processes for the preparation of phenyl acetic acid derivatives of the formula (I) some of which are known ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 independently of each other each represent hydrogen, alkyl or alkoxy by ozonolysis of compounds of the formula (II) ##STR2## in which R.sup.4 represents hydrogen or methyl and oxidation of the reaction products obtained therefrom. The invention further relates to novel intermediates and a process for the preparation thereof.

REFERENCES:
patent: 4084061 (1978-04-01), Kanasawa et al.
patent: 5202500 (1993-04-01), Theis et al.
patent: 5262383 (1993-11-01), Fischer et al.
Chemical Abstracts, vol. 53, Abstract No. 21791a, Durgaryan et al., "Condensation of 1,3-dichloro-2-butene with aromatic hydrocarbons in the presence of zinc chloride", (1959).
Chemical Abstract, vol. 53, Abstract No. 21791a, (1959).

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