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19829-72-2

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Basic Information
CAS No.: 19829-72-2
Name: 2,3-Dihydroxyterephthalic acid
Article Data: 19
Molecular Structure:
Molecular Structure of 19829-72-2 (2,3-Dihydroxyterephthalic acid)
Formula: C8H6O6
Molecular Weight: 198.132
Synonyms: 1,4-Benzenedicarboxylic acid,2,3-dihydroxy;2,3-dihydroxy-terephthalic acid;2,3-dihydroxy-1,4-benzenedicarboxylic acid;EINECS 243-354-3;1,4-Benzenedicarboxylic acid, 2,3-dihydroxy-;2,3-Dihydroxy-terephthalsaeure;
Density: 1.779g/cm3
Melting Point: 309-310℃ (ethanol ethyl ether )
Boiling Point: 456.5°C at 760 mmHg
Flash Point: 244°C
PSA: 115.06000
LogP: 0.49420
Related products
Synthetic route
124-38-9

carbon dioxide

120-80-9

benzene-1,2-diol

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
Stage #1: carbon dioxide; benzene-1,2-diol With potassium carbonate at 230 - 250℃; under 19652.1 - 60507.9 Torr; for 19.25h;
Stage #2: With hydrogenchloride In water for 5h;		95%
With sodium hydroxide 1.) MeOH, r.t., 15 min, 2.) 1100 psi, 195-200 deg C, 90 h;56%
Stage #1: benzene-1,2-diol With sodium hydroxide
Stage #2: carbon dioxide at 200℃; under 60800 Torr; for 48h;		54%
298-14-6

potassium hydrogencarbonate

120-80-9

benzene-1,2-diol

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
With 1,2,4-Trichlorobenzene at 225℃; for 14h; Autoclave;73%
3934-96-1

3,6-dicyanocatechol

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
With sodium hydroxide
7168-95-8

2,3-dimethoxyterephthalic acid

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
With hydrogen bromide
124-38-9

carbon dioxide

120-80-9

benzene-1,2-diol

K2CO3

K2CO3

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
at 225℃;
...Expand
120-80-9

benzene-1,2-diol

KHCO3

KHCO3

A

303-38-8

2,3-Dihydroxybenzoic acid

B

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
at 200℃; im Rohr;
...Expand
120-80-9

benzene-1,2-diol

56-81-5

glycerol

potassium dicarbonate

potassium dicarbonate

A

303-38-8

2,3-Dihydroxybenzoic acid

B

19829-72-2

2,3-dihydroxyterephthalic acid

C

pyrocatechol-<γ-oxy-propylene ether >

pyrocatechol-<γ-oxy-propylene ether >

Conditions
ConditionsYield
at 180℃;
...Expand
124-38-9

carbon dioxide

disodium salt of pyrocatechol

disodium salt of pyrocatechol

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
unter hohem Druck und man erhitzt das gebildete Salz bei Gegenwart von CO2 im Autoklaven auf 210grad;
120-80-9

benzene-1,2-diol

potassium bi carbonate

potassium bi carbonate

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
at 200℃; im Einschlussrohr;
potassium salt of/the/ pyrocatechol-carboxylic acid-(3)

potassium salt of/the/ pyrocatechol-carboxylic acid-(3)

KHCO3

KHCO3

19829-72-2

2,3-dihydroxyterephthalic acid

Conditions
ConditionsYield
With glycerol at 210℃;
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