2,4-pentanedione-1,5-disulfonic acid and method for...

Details 2,4-pentanedione-1,5-disulfonic acid and method for... 2,4-pentanedione-1,5-disulfonic acid and method for...

C - Chemistry, Metallurgy

07

C

260/503.6

C07C 309/07 (2006.01)

Patent

CA 2022636

2,4-PENTANEDIONE-1,5-DISULFONIC ACID AND METHOD OF PREPARING THE SAME Abstract of tbe Disclosure 2,4-pentanedione-1,5-disulfonic acid is prepared by reacting chlorosulfonic acid with 2,4- pentanedione with heating to a temperature greater than about 50°C, preferably in the presence of an anhydrous solvent. The method of this invention generally yields 2,4-pentanedione-1,5-disulfonic acid in excess of about 60 percent. The novel pentanedionedisulfonic acid (2,4-pentanedione-1,5- disulfonic acid ?acetylacetone disulfonic acid) is disclosed.

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