01204nas a2200145   4500008004100000245008200041210006900123260000800192300001400200490000700214520068200221100001800903700002300921856011400944       2019                        eng d00aCatalytic hydrogenation products of aromatic and aliphatic dicarboxylic acids0 aCatalytic hydrogenation products of aromatic and aliphatic dicar  cAPR  a1137-11420 v313 aHydrogenation of aromatic dicarboxylic acids gave 100 % selectivity to respective cyclohexane dicarboxylic acid with 5 % Pd/C catalyst. 5 % Ru/C catalyst was observed to give over hydrogenation products at 493 K and at lower temperature (453 K) the selectivity for cyclohexane dicarboxylic acids was increased. Hydrogenation of phthalic acid with Ru-Sn/Al2O3 catalyst was observed to give phthalide instead of 1,2-benzene dimethanol or 2-hydroxy methyl benzoic acid. Ru-Sn/Al2O3 catalyst selectively hydrogenated the carboxylic group of cyclohexane dicarboxylic acids to give cyclohexane dimethanol. Use of proper catalysts and reaction conditions resulted in desired products.1 aShinde, Sunil1 aDeshpande, Raj, M.  uhttps://library.ncl.res.in/content/catalytic-hydrogenation-products-aromatic-and-aliphatic-dicarboxylic-acids