Ethyl vinyl ether → p-1-Ethoxyethoxystyrene p-hydroxystyrene p-tetrahydropyranyloxystyrene

HRID 1600498Notes

Reaction equation

HRID 1600498 reaction equation
[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[CH2:7])=[CH:4][CH:3]=1.[O:10]1[CH2:15][CH2:14][CH2:13][CH2:12][CH:11]1[O:16][C:17]1[CH:24]=[CH:23][C:20]([CH:21]=[CH2:22])=[CH:19][CH:18]=1.C(OC=C)C>>[CH2:11]([O:10][CH2:15][CH2:14][O:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[CH2:7])=[CH:4][CH:3]=1)[CH3:12].[OH:16][C:17]1[CH:24]=[CH:23][C:20]([CH:21]=[CH2:22])=[CH:19][CH:18]=1.[O:10]1[CH2:15][CH2:14][CH2:13][CH2:12][CH:11]1[O:16][C:17]1[CH:18]=[CH:19][C:20]([CH:21]=[CH2:22])=[CH:23][CH:24]=1

Participants

3

Reactant 2

HCID 8023Ethyl vinyl etherHCID 67686066p-Hydroxystyrene p-tetrahydropyranyloxystyrene

Product 1

HCID 131721421p-1-Ethoxyethoxystyrene p-hydroxystyrene p-tetrahydropyranyloxystyrene

Procedure

Using 9.5 g of poly(p-hydroxystyrene/p-tetrahydropyranyloxystyrene) obtained according to (3) above and 2.7 g of ethylvinyl ether, reaction and after-treatments were carried out according to (3) of Preparation Example 3, and the produced crystals were filtered out, washed with water and dried in vacuo to give 9.9 g of poly(p-1-ethoxyethoxystyrene/p-hydroxystyrene/p-tetrahydropyranyloxystyrene) as white powdery crystal. P-1-ethoxyethoxystyrene unit/p-hydroxystyrene unit/p-tetrahydropyranyloxystyrene unit molar ratio in the polymer≈35:60:5 (1H NMR). Mw≈16,000; Mw/Mn=1.78 (GPC with polystyrene calibration).

Workup

  1. customobtained
  2. filtrationthe produced crystals were filtered out
  3. washwashed with water
  4. customdried in vacuo

Sources & evidence

ORD record
ord-be6daf759c5a44c089dd5cdbcefd24a0
Source dataset
uspto-grants-1999_11
Patent number
US05976759

Reaction notes

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