Sodium Hydroxide → L-Ascorbic Acid

HRID 892813Notes

Reaction equation

HRID 892813 reaction equation
[O:1]=[C:2]1[O:8][C@H:7]([C@H:9]([CH2:11][OH:12])[OH:10])[C:5]([O-:6])=[C:3]1[OH:4].[Na+].[OH-].[Na+]>O.CO.CO>[O:1]=[C:2]1[O:8][C@H:7]([C@H:9]([CH2:11][OH:12])[OH:10])[C:5]([OH:6])=[C:3]1[OH:4]

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 23667548Sodium Ascorbate

Product 1

HCID 54670067L-Ascorbic Acid

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 22242641Methanol--water (1/1)Solvent2×

Procedure

Except that 200 ml of 0.1 w/v% solution of sodium ascorbate in water-methanol (water/methanol-1/100) was used in place of 200 ml of the solution of sodium hydroxide in methanol in Example 1, a similar treatment to that in Example 1 gave 190 g of ascorbic acid powder of 100 mesh pass. The powder contained about 30 ppm of sodium ascorbate.

Sources & evidence

ORD record
ord-2d34b96286524ac3ac5457568d8784c5
Source dataset
uspto-grants-1992_06
Patent number
US05120762

Reaction notes

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