Water → HCID 131721419, compound

HRID 1600494Notes

Reaction equation

HRID 1600494 reaction equation
[CH2:1]([O:3][CH:4]=[CH2:5])[CH3:2].[C:6]1([CH3:16])[CH:11]=[CH:10][C:9](S(O)(=O)=O)=[CH:8][CH:7]=1.O.[O:18]1[CH2:23][CH2:22]O[CH2:20][CH2:19]1>>[CH2:4]([O:3][CH2:1][CH2:2][O:18][C:23]1[CH:22]=[CH:16][C:6]([CH:11]=[CH2:10])=[CH:7][CH:8]=1)[CH3:5].[OH:3][C:4]1[CH:5]=[CH:16][C:6]([CH:11]=[CH2:10])=[CH:7][CH:8]=1.[CH3:16][C:6]1[CH:11]=[CH:10][C:9]([CH:19]=[CH2:20])=[CH:8][CH:7]=1

Participants

5

Reactant 4

HCID 962WaterHCID 6101p-Toluenesulfonic acidHCID 8023Ethyl vinyl etherHCID 312751,4-Dioxane

Product 1

HCID 131721419HCID 131721419, compound

Procedure

To a solution of 15.0 g of poly(p-hydroxystyrene/p-methylstyrene) obtained according to (2) and 3.5 g of ethylvinyl ether in 150 ml of 1,4-dioxane was added a catalytic amount of pyridinium salt of p-toluenesulfonic acid to carry out reaction with stirring at room temperature for 24 hours. The reaction solution was poured into 5,000 ml of water and crystallized. Precipitated crystals were filtered out, washed with water and dried in vacuo to give 11.5 g of poly(p-1-ethoxyethoxystyrene/p-hydroxystyrene/p-methylstyrene) as white powder. The p-1-ethoxyethoxystyrene unit/p-hydroxystyrene unit/p-methylstyrene unit molar ratio in the polymer was ca. 35:60:5 based on

Workup

  1. customreaction
  2. customcrystallized
  3. customPrecipitated crystals
  4. filtrationwere filtered out
  5. washwashed with water
  6. customdried in vacuo

Sources & evidence

ORD record
ord-56c5791a5eec4ba7b2f548a413d0cb9f
Source dataset
uspto-grants-1999_11
Patent number
US05976759

Reaction notes

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