Potassium Carbonate → HCID 18963677, compound

HRID 1939130Notes

Reaction equation

HRID 1939130 reaction equation
[CH:1]#[C:2][C:3]1[CH:8]=[CH:7][C:6]([OH:9])=[CH:5][CH:4]=1.Cl[CH2:11][C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13].C([O-])([O-])=O.[K+].[K+]>CC(C)=O>[CH:2]([C:3]1[CH:8]=[CH:7][C:6]([O:9][CH2:11][C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])=[CH:5][CH:4]=1)=[CH2:1].[OH:9][C:6]1[CH:7]=[CH:8][C:3]([CH:2]=[CH2:1])=[CH:4][CH:5]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 327584-EthynylphenolHCID 66052tert-Butyl chloroacetate

Product 1

HCID 18963677HCID 18963677, compound

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

A suspension of poly(p-hydroxystyrene) (4.0 g) obtained in the same manner as described in Synthesis Example 7-(2), tert-butyl monochloroacetate (3.0 g) and anhydrous K2CO3 (2.8 g) in acetone (35 ml) was reacted with stirring for 2 hours under reflux. After cooling, the precipitate was filtered off, the filtrate was poured into H2O (1 l) and was precipitated. The precipitate was filtered, washed with H2O and dried under reduced pressure to give 5.2 g of poly(tert-butyl p-vinylphenoxyacetate/p-hydroxystyrene) as white powder having Mw 11000 (GPC with polystyrene calibration). The polymer was found to have tert-butyl p-vinylphenoxyacetate unit and p-hydroxystyrene unit in a molar ratio of ca. 1:1 based on 1HNMR.

Workup

  1. customobtained in the same manner
  2. customwas reacted
  3. temperatureunder reflux
  4. temperatureAfter cooling
  5. filtrationthe precipitate was filtered off
  6. additionthe filtrate was poured into H2O (1 l)
  7. customwas precipitated
  8. filtrationThe precipitate was filtered
  9. washwashed with H2O
  10. customdried under reduced pressure

Sources & evidence

ORD record
ord-9263a93113314f8a933beaefc000ea7b
Source dataset
uspto-grants-1997_12
Patent number
US05695910

Reaction notes

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