Sodium Hydroxide → Robinin silver

HRID 61524

Reaction equation

HRID 61524 reaction equation
[CH3:1][C@@H:2]1[O:7][C@@H:6]([O:8][CH2:9][C@H:10]2[O:15][C@@H:14]([O:16][C:17]3[C:26](=[O:27])[C:25]4[C:20](=[CH:21][C:22]([O:29][C@@H:30]5[O:35][C@@H:34]([CH3:36])[C@H:33]([OH:37])[C@@H:32]([OH:38])[C@H:31]5[OH:39])=[CH:23][C:24]=4[OH:28])[O:19][C:18]=3[C:40]3[CH:45]=[CH:44][C:43]([OH:46])=[CH:42][CH:41]=3)[C@H:13]([OH:47])[C@@H:12]([OH:48])[C@H:11]2[OH:49])[C@H:5]([OH:50])[C@H:4]([OH:51])[C@H:3]1[OH:52].[OH-].[Na+].[Ag:55]>C1(C)C=CC(S([O-])(=O)=O)=CC=1.[Ag+].O>[CH3:1][C@@H:2]1[O:7][C@@H:6]([O:8][CH2:9][C@H:10]2[O:15][C@@H:14]([O:16][C:17]3[C:26](=[O:27])[C:25]4[C:20](=[CH:21][C:22]([O:29][C@@H:30]5[O:35][C@@H:34]([CH3:36])[C@H:33]([OH:37])[C@@H:32]([OH:38])[C@H:31]5[OH:39])=[CH:23][C:24]=4[OH:28])[O:19][C:18]=3[C:40]3[CH:45]=[CH:44][C:43]([OH:46])=[CH:42][CH:41]=3)[C@H:13]([OH:47])[C@@H:12]([OH:48])[C@H:11]2[OH:49])[C@H:5]([OH:50])[C@H:4]([OH:51])[C@H:3]1[OH:52].[Ag:55]

Participants

6

Reactant 3

HCID 14798Sodium HydroxideHCID 23954SilverHCID 5281693Robinin3×

Product 1

HCID 131737180Robinin silver

Reagents, catalysts & solvents 2

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

Procedure

Robinin/silver colloidal nanoparticle catalyst is prepared by dissolving 1.07 g robinin in a beaker containing 800 ml DI water at room temperature. 1 N NaOH solution is added with stirring to adjust the solution pH to 11. In a separate beaker, 1.42 g silver p-toluenesulfonate is dissolved in 40 ml DI water. The silver ion solution is added to the robinin solution with vigorous stirring. The molar ratio of silver metal to robinin is 1:0.28. 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-64150bcd57e847049c37bcfb81e28339
Source dataset
uspto-grants-2016_09
Patent number
US09441300B2

Linked notes

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