Hydrogenation of substituted phthalic anhydrides over palladium
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 18,p. 2030-2036
- https://doi.org/10.1039/p19770002030
Abstract
Catalytic hydrogenation of phthalic anhydride in ethyl acetate over 10% palladium–carbon gives o-toluic acid. Under similar conditions 3- and 4-substituted phthalic anhydrides give phthalides (8), and/or 2-(hydroxy-methyl)benzoic acids (7) in addition to o-toluic acids (9). Mechanisms of formation of these products are discussed.Keywords
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