Isobutylene → 1-tert-Butyl-4-(3-chloro-2-methylpropyl)benzene

HRID 1065179

Reaction equation

HRID 1065179 reaction equation
[CH2:1]=[C:2]([CH3:4])[CH3:3].[CH3:5][CH:6]([CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)[CH2:7][Cl:8].F>>[CH3:5][CH:6]([CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)[CH2:7][Cl:8].[CH3:5][CH:6]([CH2:9][C:10]1[CH:15]=[CH:14][C:13]([C:2]([CH3:4])([CH3:3])[CH3:1])=[CH:12][CH:11]=1)[CH2:7][Cl:8]

Participants

5

Reactant 3

HCID 8255IsobutyleneHCID 14917Hydrofluoric AcidHCID 13510156(3-Chloro-2-methylpropyl)benzene

Product 2

HCID 132518171-tert-Butyl-4-(3-chloro-2-methylpropyl)benzeneHCID 13510156(3-Chloro-2-methylpropyl)benzene

Procedure

20 parts by weight of isobutene are passed into a mixture of 68 parts by weight of 2-methyl-3-phenylpropyl chloride and 3 parts by weight of hydrogen fluoride at 0° C. The mixture is then stirred for 12 hours at room temperature. The crude product is washed with water, dried over Na2CO3 and distilled. 36 parts by weight of 2-methyl-3-phenylpropyl chloride, boiling point 105° C./16 mm Hg and 32 parts by weight of 2-methyl-3-(p-tert.-butylphenyl)-propyl chloride, boiling point 80° C.-81° C./0.02 mm Hg, are obtained.

Workup

  1. washThe crude product is washed with water
  2. dry with materialdried over Na2CO3
  3. distillationdistilled

Sources & evidence

ORD record
ord-5821a7df913a4bd5b7c6ff5bdf662702
Source dataset
uspto-grants-1982_05
Patent number
US04328380

Linked notes

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