Dicyclopentadiene → Cyclopentadiene

HRID 1981233Notes

Reaction equation

HRID 1981233 reaction equation
[CH:1]1[CH2:5][CH:4]=[CH:3][CH:2]=1.[CH2:6]1[CH:10]2[CH:11]3[CH:15]=[CH:14][CH:13]([CH:9]2[CH:8]=[CH:7]1)[CH2:12]3>>[CH2:6]1[CH:10]2[CH:11]3[CH:15]=[CH:14][CH:13]([CH:9]2[CH:8]=[CH:7]1)[CH2:12]3.[CH2:7]=[CH:8][C:9](=[CH2:10])[CH3:13].[CH:5]1[CH2:4][CH:3]=[CH:2][CH:1]=1.[CH:5]1[CH2:4][CH:3]=[CH:2][CH:1]=1

Participants

5

Reactant 2

HCID 6492DicyclopentadieneHCID 7612Cyclopentadiene

Product 3

HCID 6492DicyclopentadieneYield 4.8%HCID 7612CyclopentadieneYield 8.2%HCID 22568287HCID 22568287, compoundYield 7.2%

Conditions

Temperature
150 °C

Procedure

A C5 fraction obtained from a naphtha cracking was heated at a temperature of 150° C. for 3 hours, whereby cyclopentadiene contained therein was converted into dicyclopentadiene. Then, the resultant mixture was distilled to strip a light fraction. Thus, a crude dicyclopentadiene containing 4.8% of a C5 fraction, 0.5% of benzene 77.1% of dicyclopentadiene, 7.2% of isoprene-cyclopentadiene codimer, 8.2% of cyclopentadiene oligomer and 2.2% of unknown components was obtained.

Workup

  1. distillationThen, the resultant mixture was distilled

Sources & evidence

ORD record
ord-7067bbf607d04ba18a89453d77520b1b
Source dataset
uspto-grants-1985_04
Patent number
US04513130

Reaction notes

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