Ethylene Glycol → Dicyclopentadiene

HRID 1934778Notes

Reaction equation

HRID 1934778 reaction equation
[CH2:1](O)[CH2:2]O.C(O)COCCO.[C:12]1(=O)O[C:15](=O)[C:14]2=[CH:18][CH:19]=[CH:20][CH:21]=[C:13]12>O>[CH2:20]1[CH:15]2[CH:2]3[CH:1]=[CH:12][CH:13]([CH:14]2[CH:18]=[CH:19]1)[CH2:21]3

Participants

5

Reactant 3

HCID 174Ethylene GlycolHCID 6811Phthalic AnhydrideHCID 8117Diethylene Glycol

Product 1

HCID 6492Dicyclopentadiene

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
120 °C

Procedure

The reaction product was added by 184 g (2.95 mol) of ethylene glycol (EG), 85 g (0.8 mol) of diethylene glycol (DEG) and 30 g (0.2 mol) of phthalic anhydride (PA), and then esterified by heating to 200° C. with removing water distillated from the reaction product. When the acid value of the esterified product reached 22, it was cooled to 120° C. to obtain a dicyclopentadiene-modified unsaturated polyester (second step).

Sources & evidence

ORD record
ord-a12e451e92a0483483c8bd720a451fa4
Source dataset
uspto-grants-2002_05
Patent number
US06384151B1

Reaction notes

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