Sulfuric Acid → HCID 53938834, compound

HRID 2294515Notes

Reaction equation

HRID 2294515 reaction equation
[O:1]([CH2:14][CH3:15])[C@@H:2]1[O:10][C@H:9]([C:11]([O-:13])=[O:12])[C@H:7]([OH:8])[C@H:5]([OH:6])[C@H:3]1[OH:4].[Na+].S(=O)(=O)(O)O>O>[O:1]([CH2:14][CH3:15])[C@@H:2]1[O:10][C@H:9]([C:11]([OH:13])=[O:12])[C@H:7]([OH:8])[C@H:5]([OH:6])[C@H:3]1[OH:4]

Participants

4

Reactant 2

HCID 1118Sulfuric AcidHCID 86751623HCID 86751623, compound

Product 1

HCID 53938834HCID 53938834, compoundYield 90%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

100 g (0.4 mol) of sodium ethyl β-D-galactopyranoside uronate prepared according to Example No. 10 is solubilized in water (20% solution). After adding sulphuric acid up to pH=2, concentrating under vacuum and selectively precipitating the salts in acetone, ethyl β-D-galactopyranoside uronic acid is recovered with a 90% yield (80 grams). Its physicochemical characteristics are given below:

Workup

  1. concentrationconcentrating under vacuum
  2. customselectively precipitating the salts in acetone
  3. customethyl β-D-galactopyranoside uronic acid is recovered with a 90% yield (80 grams)

Sources & evidence

ORD record
ord-912bbf1932ca480a98a27bde84c23550
Source dataset
uspto-grants-1997_11
Patent number
US05688929

Reaction notes

Loading…