Ethylene Glycol → Dimethyl terephthalate

HRID 1578675Notes

Reaction equation

HRID 1578675 reaction equation
C1C=CC(C2(C3C=CC=CC=3)NC(=O)N[C:8]2=[O:9])=CC=1.C(O)[CH2:21][OH:22].O[CH2:25][CH:26]([CH2:28][OH:29])O.[C:30]1([CH3:37])[C:35]([OH:36])=CC=[CH:32][CH:31]=1>C1C(O)=CC=CC=1C>[CH3:8][O:9][C:28](=[O:29])[C:26]1[CH:32]=[CH:31][C:30]([C:35]([O:22][CH3:21])=[O:36])=[CH:37][CH:25]=1

Participants

6

Reactant 4

HCID 174Ethylene GlycolHCID 335O-CresolHCID 753GlycerolHCID 17755,5-Diphenylhydantoin

Product 1

HCID 8441Dimethyl terephthalate

Reagents, catalysts & solvents 1

HCID 342M-CresolSolvent

Procedure

200 g of an approximately 30 % solution of the dihydantoin in cresol is mixed with a solution of 350 g of a polyester obtained from 1,6 mol terephthalic acid dimethylester, 1,2 mol ethylene glycol and 0,8 mol glycerine in 820 g m-cresol at 50°C. A homogeneous solution having a viscosity of 7480 cP20°C is obtained. This solution is applied to metal sheet and stoved to a clear, hard lacquer film in stages at 240°C and 300°C.

Sources & evidence

ORD record
ord-1567babdfe024029bc06d5adb0842a21
Source dataset
uspto-grants-1976_02
Patent number
US03939122

Reaction notes

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