Styrene → HCID 22601819, compound

HRID 2083567Notes

Reaction equation

HRID 2083567 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH:9]([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=1[CH3:17])=[CH2:10].B(F)(F)F.C1(O)C=CC=CC=1>C1(C)C=CC=CC=1>[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH:9]([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=1[CH3:17])=[CH2:10]

Participants

5

Reactant 3

HCID 7501StyreneHCID 119042-MethylstyreneHCID 13519098Phenol boron trifluoride

Product 1

HCID 22601819HCID 22601819, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

A three-necked flask was charged with 250 g of styrene, 250 g of vinyl toluene and 500 g of toluene, and with stirring, a boron trifluoride-phenol complex [boron trifluoride (30%)-phenol (70%); 2% by weight based on total reactants] was added little by little. The reaction was performed for 3 hours at 20° C while cooling the flask with a dry ice-acetone bath. The catalyst was removed with an alkali, and the reaction mixture was concentrated in order to drive off solvent and unreacted monomers. There was obtained a styrene/vinyl toluene copolymer having a softening point of 102° C, a color of not more than 1, an average molecular weight of 1,400 and an acid value of 0.01.

Workup

  1. temperaturewhile cooling the flask with a dry ice-acetone bath
  2. customThe catalyst was removed with an alkali, and the reaction mixture
  3. concentrationwas concentrated in order

Sources & evidence

ORD record
ord-42f1d10cd2484142b850e57ed59148a1
Source dataset
uspto-grants-1978_04
Patent number
US04086198

Reaction notes

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