ChemicalBook CAS DataBase List Ethylene glycol diacetate

Ethylene glycol diacetate synthesis

15synthesis methods

Product Name:Ethylene glycol diacetate
CAS Number:111-55-7
Molecular formula:C6H10O4
Molecular Weight:146.14

Ethylene glycol diacetate is produced by direct esterification of Ethylene glycol with Acetic acid, using azeotropic conditions..

107-21-1 Synthesis

107-21-1
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64-19-7 Synthesis

64-19-7
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111-55-7
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$5.00/100g

Yield:111-55-7 99.61%

Reaction Conditions:

with 1-(3-sulfonic acid)propylimidazole bisulfate ([Ps-im]HSO₄) supported silica in cyclohexane at 150; under 760.051 Torr; for 5 h;Pressure;Temperature;Time;

Steps:

1

silica gel as carrier,([Ps-im] HS04) is an acidic ionic liquid,Using (3-chloropropyl) triethoxysilane as the coupling agent,[Ps-im] HS04 was chemically bonded to the surface of silica gel according to the preparation method of acidic immobilized ionic liquid,To prepare an acidic immobilized ionic liquid;And the loading amount of the acidic ascorbic liquid in the acid-immobilized ionic liquid is 5mmol / g;In the batch distillation column (Φ20 × 1400mm) by the molar ratio of 1: 3.8 in the tower were added190 gAcetic acid with51. 7gEthylene glycol,Then added7. 26 gcatalyst,And 40 g of cyclohexane was added to the phase separator as an azeotrope;The temperature of the batch distillation column reactor was controlled at 150 ° C,Reaction pressure control in 1. Oatm,After 5 h of esterification reaction, ethylene glycol diacetate was obtained.

References:

CN104193621,2016,B Location in patent:Paragraph 0023-0028