1-(Tert-butoxy)-4-ethenylbenzene → 4-Methoxystyrene

HRID 1029773Notes

Reaction equation

HRID 1029773 reaction equation
[C:1]([O:5][C:6]1[CH:13]=[CH:12][C:9]([CH:10]=[CH2:11])=[CH:8][CH:7]=1)(C)(C)C.O.N>CO>[CH3:1][O:5][C:6]1[CH:13]=[CH:12][C:9]([CH:10]=[CH2:11])=[CH:8][CH:7]=1

Participants

4

Reactant 2

HCID 5775311-(Tert-butoxy)-4-ethenylbenzeneHCID 12896473Azane;hydrate

Product 1

HCID 125074-Methoxystyrene

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

p-Methoxystyrene was polymerized in the same manner as in Example 25 and 25 ml (0.26 mole/1) of p-tert-butoxystyrene was thereafter added to the reaction mixture and further polymerized therewith at an elevated temperature of 25° C. Subsequently, methanol (330 mmoles/l) containing a small amount of ammonia water was added to the reaction system to terminate the polymerization and obtain a mixture containing a polymer. The mixture was washed first with a hydrochloric acid aqueous solution (8 vol. %) and then with water, followed by evaporation for the removal of the solvent, etc. to collect the polymer.

Workup

  1. additionwas thereafter added to the reaction mixture
  2. customfurther polymerized
  3. customat an elevated temperature of 25° C
  4. additionwas added to the reaction system
  5. customto terminate
  6. customthe polymerization
  7. customobtain a mixture
  8. additioncontaining a polymer
  9. washThe mixture was washed first with a hydrochloric acid aqueous solution (8 vol. %)
  10. customwith water, followed by evaporation for the removal of the solvent, etc.
  11. customto collect the polymer

Sources & evidence

ORD record
ord-c903914739d74ebab44a9d5f97c83392
Source dataset
uspto-grants-1992_04
Patent number
US05102966

Reaction notes

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