Nitric Acid → Glycolic Acid

HRID 1833437Notes

Reaction equation

HRID 1833437 reaction equation
[N+]([O-])(O)=[O:2].C(O)(=O)C[O:7][CH2:8][C:9]([OH:11])=[O:10]>>[C:9]([OH:11])(=[O:10])[C:8]([OH:7])=[O:2].[C:9]([OH:11])(=[O:10])[CH2:8][OH:7]

Participants

4

Reactant 2

HCID 944Nitric AcidHCID 8088Diglycolic Acid

Product 2

HCID 757Glycolic AcidHCID 971Oxalic Acid

Procedure

After termination of the reaction, an aqueous reaction mixture, containing approximately 5-30% by weight of HNO3 and about 20-40% by weight of diglycolic acid, in addition to minor proportions of impurities, such as oxalic acid and glycolic acid, is obtained. According to the state of the art this solution is worked up by evaporating all of the water and nitric acid under vacuum. The thus-separated diglycolic acid is recrystallized once more, if necessary.

Workup

  1. customAfter termination of the reaction
  2. additionin addition to minor proportions of impurities

Sources & evidence

ORD record
ord-2e4ec9f599b04bdc9fc35d97ea776da5
Source dataset
uspto-grants-1978_01
Patent number
US04066691

Reaction notes

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