Method of producing alkandiol-diaminobenzoates
AssigneeAktiebolaget Bofors
InventorBoris Holm
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Abstract
A method of producing alkandiol-diaminobenzoates which includes esterifying nitro-benzoic acid and certain diols in a melt and then dissolving the intermediate in a solvent sparingly soluble in water such as an aromatic hydrocarbon, an ether or an ester and reducing with hydrogen gas.
Claims9
A method of producing 1,3 propanediol-di-p-aminobenzoate from p-nitro-benzoic acid and 1,3 propanediol, characterized in that the nitrobenzoic acid and the diol are esterified in a melt at 160.degree.-210.degree. C. after which the intermediate obtained is dissolved in the solvent anisole and is reduced with hydrogen gas in the presence of said solvent to the amino compound desired.
Dependencies are inferred from the claim text.