Water → HCID 59141091, compound

HRID 1641524Notes

Reaction equation

HRID 1641524 reaction equation
[CH2:1]([O:8][C@@H:9]1[C@@H:15]([O:16][CH2:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[C@H:14]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C@@H:13]([CH2:32][O:33][CH2:34][C:35]2[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=2)[S:12][C:10]1([C:41]1[CH:46]=[C:45]([CH:47]2OCC[O:48]2)[C:44]([CH3:52])=[CH:43][C:42]=1[O:53][CH2:54][C:55]1[CH:60]=[CH:59][CH:58]=[CH:57][CH:56]=1)[OH:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O>O1CCCC1.Cl>[CH2:1]([O:8][C@@H:9]1[C@@H:15]([O:16][CH2:17][C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=2)[C@H:14]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C@@H:13]([CH2:32][O:33][CH2:34][C:35]2[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=2)[S:12][C:10]1([C:41]1[CH:46]=[C:45]([CH:47]=[O:48])[C:44]([CH3:52])=[CH:43][C:42]=1[O:53][CH2:54][C:55]1[CH:56]=[CH:57][CH:58]=[CH:59][CH:60]=1)[OH:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 2

HCID 962WaterHCID 59141093HCID 59141093, compound

Product 1

HCID 59141091HCID 59141091, compoundYield 95.8%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 2,3,4,6-tetra-O-benzyl-1-C-[2-(benzyloxy)-5-(1,3-dioxolan-2-yl)-4-methylphenyl]-5-thio-D-glucopyranose (11.1 g, 13.5 mmol) in tetrahydrofuran (100 mL), 6N hydrochloric acid (100 mL) was added under ice cooling and stirred at room temperature for 12 hours. After addition of water under ice cooling, the reaction mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium bicarbonate and saturated aqueous sodium chloride, and then dried over anhydrous magnesium sulfate. After filtering off the desiccant, the solvent was distilled off under reduced pressure and the resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to give the titled compound (10.1 g, quant.) as a light-yellow oily compound.

Workup

  1. extractionthe reaction mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated aqueous sodium bicarbonate and saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationAfter filtering off the desiccant
  5. distillationthe solvent was distilled off under reduced pressure
  6. customthe resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1)

Sources & evidence

ORD record
ord-e3420a1de0fa4faeb055eb3c1df25d8c
Source dataset
uspto-grants-2012_02
Patent number
US08115017B2

Reaction notes

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