Abstract
WHEN a solution of phenol and succinic anhydride in acetylene tetrachloride was cooled in a freezing mixture and treated slowly with aluminium chloride, at such a rate that the temperature of the reactants did not exceed 0°, and the reaction completed as stated by Mitter and Shyamakanta1, then the product was found to be a mixture of β-(o-hydroxy-benzoyl)propionic acid (m.p. 145°) and β-(p-hydroxy-benzoyl)propionic acid (m.p. 160°), in which the o-hydroxy-acid was predominant. This is contrary to the statement of Mitter and Shyamakanta1, that the only product of the reaction is the o-hydroxy-acid.
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References
Mitter, P. C., and Shyamakanta, De, J. Ind. Chem. Soc., 16, 35 (1939).
cf. Baddar, F. G., J. Chem. Soc., 224 (1947).
Lockett, J., and Short, W. F., J. Chem. Soc., 788 (1939), give m.p. 39–39.5°.
Martin, E. L., J. Amer. Chem. Soc., 58, 1438 (1936).
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BADDAR, F., EL-ASSAL, L. β-Aroylpropionic Acids. Nature 165, 315–316 (1950). https://doi.org/10.1038/165315a0
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DOI: https://doi.org/10.1038/165315a0
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