Methylcyclohexane → Isobutylene 1,3,5-hexatriene

HRID 894099

Reaction equation

HRID 894099 reaction equation
[CH3:1][CH:2]1[CH2:7]CCC[CH2:3]1.CC(=C)C.[CH2:12]=[CH:13][CH:14]=[CH:15][CH:16]=[CH2:17].[Al](Cl)(Cl)CC>C(Cl)Cl>[CH3:3][C:2](=[CH2:1])[CH3:7].[CH2:12]=[CH:13][CH:14]=[CH:15][CH:16]=[CH2:17]

Participants

6

Reactant 4

HCID 7962MethylcyclohexaneHCID 8255IsobutyleneHCID 11237Ethylaluminum dichlorideHCID 166951,3,5-Hexatriene

Product 1

HCID 86737908Isobutylene 1,3,5-hexatriene

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Operating with a reactor modified with respect to that used for the synthesis of POL 1, 2, 3 and 4, an isobutylene-1,3,5-hexatriene copolymer of low molecular weight was synthesised. 60 cm3 of methycyclohexane, 20 cm3 of methylene chloride, 28.4 g of isobutylene and 0.9 g of 1,3,5-hexatriene were fed, and the reaction was carried out at -10° C. 0.8 moles of AlEtCl2 were then introduced, and the mixture polymerised for fifteen minutes. 8.8 g of copolymer were isolated having a molecular weight of 10,000 and a conjugated unsaturation content of 0.38 moles/kg. By reaction with maleic anhydride, a functionalised polymer was obtained with 0.38 moles/kg of anhydride groups.

Workup

  1. customOperating with a reactor
  2. customthat used for the synthesis of POL 1, 2, 3 and 4
  3. customwas carried out at -10° C
  4. customthe mixture polymerised for fifteen minutes

Sources & evidence

ORD record
ord-98ab83bd827743f5b2034377e61bce34
Source dataset
uspto-grants-1981_08
Patent number
US04282337

Linked notes

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