Isobutylene → Benzene, 4-(1,1-dimethylethyl)-1,2-dimethyl-

HRID 2417743Notes

Reaction equation

HRID 2417743 reaction equation
[CH3:1][C:2](=[CH2:4])[CH3:3]>CC1C=CC=CC=1C>[CH3:4][C:2]1[CH:3]=[CH:3][C:2]([C:4]([CH3:1])([CH3:2])[CH3:4])=[CH:1][C:1]=1[CH3:3]

Participants

3

Reactant 1

HCID 8255Isobutylene

Product 1

HCID 81881Benzene, 4-(1,1-dimethylethyl)-1,2-dimethyl-

Reagents, catalysts & solvents 1

HCID 7237O-XyleneSolvent

Procedure

At 190° C. o-xylene was alkylated with isobutylene to give 1,2-dimethyl-4-t-butylbenzene. The selectivity was 97% and conversion of the olefin 95%. The reaction was maintained for 48 hours without a decline in catalyst activity.

Workup

  1. customAt 190° C.

Sources & evidence

ORD record
ord-d5889040afd04ce7bb4f4914856d3c1f
Source dataset
uspto-grants-1984_09
Patent number
US04469908

Reaction notes

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