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ChemicalBook CAS DataBase List 2-Ketoglutaric acid
328-50-7

2-Ketoglutaric acid synthesis

14synthesis methods
Synthesis of α-ketoglutaric acid: 225 g of triethyl nitrilotricarboxylate and 600 ml of concentrated hydrochloric acid were mixed and left to pass through. It was concentrated by distillation to 140°C, and the residue was crystallized by cooling to obtain 110-112 g of α-ketoglutaric acid with a yield of 92-93%.
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Yield:328-50-7 22 %Chromat. ,110-15-6 10 %Chromat. ,64-18-6 52 %Chromat.

Reaction Conditions:

with dihydrogen peroxide in water at 59.84; under 760.051 Torr; for 24 h;Schlenk technique;Green chemistry;

Steps:

2.2.1. General procedure for oxidation of furfural, HMF, FuA andFDCA
General procedure: Furfural, HMF, FuA and FDCA oxidation were carried out in aSchlenk glass tube attached with a reflux condenser. In each reactionsolid acid and/or solid base catalyst(s) and reactants wereloaded in the reactor followed by the addition of 30% H2O2 oxidantand water solvent. The reaction was performed with stirring underatmospheric pressure at a range of temperatures. After the reaction,the resultant reaction mixture were diluted 10-20 times withwater and the catalyst was filtered off using Millex-LG 0.20 m.The recovered catalyst was washed by 50 mL of water, and driedin vacuo at room temperature before further reuses.

References:

Choudhary, Hemant;Nishimura, Shun;Ebitani, Kohki [Applied Catalysis A: General,2013,vol. 458,p. 55 - 62]

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