Sodium Hydroxide → Myricetin 3-rhamnoside silver

HRID 61527

Reaction equation

HRID 61527 reaction equation
[CH3:1][CH:2]1[O:7][CH:6]([O:8][C:9]2[C:18](=[O:19])[C:17]3[C:12](=[CH:13][C:14]([OH:21])=[CH:15][C:16]=3[OH:20])[O:11][C:10]=2[C:22]2[CH:27]=[C:26]([OH:28])[C:25]([OH:29])=[C:24]([OH:30])[CH:23]=2)[CH:5]([OH:31])[CH:4]([OH:32])[CH:3]1[OH:33].[OH-].[Na+].[Ag:36]>C1(C)C=CC(S([O-])(=O)=O)=CC=1.[Ag+].O>[CH3:1][CH:2]1[O:7][CH:6]([O:8][C:9]2[C:18](=[O:19])[C:17]3[C:12](=[CH:13][C:14]([OH:21])=[CH:15][C:16]=3[OH:20])[O:11][C:10]=2[C:22]2[CH:23]=[C:24]([OH:30])[C:25]([OH:29])=[C:26]([OH:28])[CH:27]=2)[CH:5]([OH:31])[CH:4]([OH:32])[CH:3]1[OH:33].[Ag:36]

Participants

6

Reactant 3

HCID 14798Sodium HydroxideHCID 23954SilverHCID 53520005,7-Dihydroxy-3-(3,4,5-Trihydroxy-6-Methyloxan-2-Yl)Oxy-2-(3,4,5-Trihydroxyphenyl)Chromen-4-One3×

Product 1

HCID 131737183Myricetin 3-rhamnoside silver

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 85606Benzenesulfonic acid, 4-methyl-, silver(1+) salt (1:1)Solvent

Procedure

Myricetin 3-rhamnoside/silver colloidal nanoparticle catalyst is prepared by dissolving 1.04 g myricetin 3-rhamnoside in a beaker containing 750 ml DI water at room temperature. With stirring, 1 N NaOH solution is added to adjust the solution pH to 11. In a separate beaker, 1.4 g silver p-toluenesulfonate is dissolved in 40 mL DI water. The silver ion solution is added to the myricetin 3-rhamnoside solution with vigorous stirring. The molar ratio of silver to myricetin 3-rhamnoside is 1:0.4. The beaker containing the aqueous catalyst solution is placed in a 50° C. water bath for 12 hours to test its stability. After 12 hours the solution is observed and no precipitate is expected indicating that the catalyst is still stable.

Workup

  1. additionThe beaker containing the aqueous catalyst solution
  2. customis placed in a 50° C.
  3. customfor 12 hours

Sources & evidence

ORD record
ord-1b7f6a3bd0b240de9ea28178bd7440f4
Source dataset
uspto-grants-2016_09
Patent number
US09441300B2

Linked notes

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