Benzene → HCID 14423575, compound

HRID 2108238Notes

Reaction equation

HRID 2108238 reaction equation
[CH2:1]=[CH2:2].[CH:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1>>[CH:1]([C:3]1[CH:8]=[C:7]([C:1]([C:3]2[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=2)=[CH2:2])[CH:6]=[CH:5][CH:4]=1)=[CH2:2]

Participants

3

Reactant 2

HCID 241Benzene2×HCID 6325Ethylene

Product 1

HCID 14423575HCID 14423575, compound

Procedure

When benzene is alkylated with ethylene in the presence of an alkylation catalyst, a reaction product containing unreacted benzene, alkylbenzenes, polyalkylbenzenes and heavier products is obtained. The above 1-(3-ethylphenyl)-1-phenylethane of the formula (V) is recovered as a fraction mainly containing components having a boiling point of 285° to 290° C. (atmospheric pressure basis) by distillation such as reduced-pressure distillation. The fraction is then dehydrogenated in the presence of a dehydrogenation catalyst, and if necessary, it is followed by distillation, to obtain 1-(3-vinylphenyl)-1-phenylethylene of the formula (III).

Workup

  1. customheavier products is obtained
  2. customThe above 1-(3-ethylphenyl)-1-phenylethane of the formula (V) is recovered as a fraction mainly containing components
  3. distillationby distillation
  4. distillationsuch as reduced-pressure distillation
  5. distillationif necessary, it is followed by distillation

Sources & evidence

ORD record
ord-88dc4206fc2247ab927791e98d41a585
Source dataset
uspto-grants-1990_06
Patent number
US04937375

Reaction notes

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