Preparation of aryl-butadienoic acids

Details Preparation of aryl-butadienoic acids Preparation of aryl-butadienoic acids

1975-08-15

1977-05-17

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260469, 260470, 260473R, 260473F, 260476R, 260515R, 260515A, 260516, 260520R, 260520D, 260521H, 2603305, C07C 5100

Patent

active

040241823

ABSTRACT:
Aryl-butadienoic acids, e.g., 4-(p-tetradecyloxyphenyl)-2-methyl-buta-2,3-dienoic acid, are prepared by a process comprising converting an acyl halide of an aryl lower alkanoic acid to its corresponding .beta.,.beta.,.beta.-trichloroethyl ester of the desired aryl-butadienoic acid which is then treated with zinc to obtain the corresponding free arylbutadienoic acid.

REFERENCES:
patent: 3402198 (1968-09-01), Bolhofer
patent: 3445503 (1969-05-01), Schultz et al.
patent: 3452081 (1969-06-01), Sprague et al.
patent: 3674836 (1972-07-01), Creger
Moppett et al., "J. Chem. Soc.," 1968(c), pp. 3040-3042.
Rosenfeld, "J. Am. Chem. Soc.," vol. 79, pp. 5540-5542, (1957).
Fieser et al., "Reagents for Org. Synthesis," John Wiley and Sons, New York, pp. 1276-1279, 1292-1293, (1966).
Woodward et al., JACS, 88; 582-583, (1966).
Pike et al., "J. Org. Chem.," 34, 3552-3557, (1969).
Eckstein, "Angew. Chem.," 77, 912-913, (1965) and 78, 682-683, (1966).

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