2,5-Dioxo-3H,6H-furo[(3,2-b]furan-3a,6a-diacetic acid and salts thereof
AssigneeMiles Laboratories, Inc.
InventorHarold E. Hartzler
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Abstract
Disclosed is the title compound having the structural formula: ##STR1## This compound in which M is hydrogen, an alkali metal or ammonium, has utility as a chelating agent which exhibits stability constants with various metal ions which are intermediate between those of EDTA and citric acid.
Claims5
2,5-dioxo-3H,6H,furo[3,2-b]furan-3a,6a-diacetic acid and salts thereof characterized by the structural formula ##STR5## wherein M is hydrogen, an alkali metal or ammonium.
A method for the preparation of 2,5-dioxo-3H,6H-furo[3,2-b]furan-3a,6a-diacetic acid which comprises oxidizing 9,10-dihydroxy-1,4,5,8-tetrahydronaphthalene with ozone and hydrogen peroxide for a time sufficient to form the desired product.
Dependencies are inferred from the claim text.