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4640-41-9

Basic Information
CAS No.: 4640-41-9
Name: dichloro-3,6-dihydroxybenzene-1,2-dicarbonitrile
Article Data: 50
Molecular Structure:
Molecular Structure of 4640-41-9 (dichloro-3,6-dihydroxybenzene-1,2-dicarbonitrile)
Formula: C8H2Cl2N2O2
Molecular Weight: 229.022
Synonyms: 2,3-dichloro-5,6-dicyanoquinol; 4,5-dichloro-3,6-dihydroxybenzene-1,2-dicarbonitrile
Density: 1.8g/cm3
Boiling Point: 365.8°Cat760mmHg
Flash Point: 175°C
PSA: 88.04000
LogP: 2.14796
Synthetic route
131323-89-2

1,1-di(thiophen-2-yl)ethan-1-ol

84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

A

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

B

132609-53-1

7,8-Dichloro-6,9-dioxo-4-thiophen-2-yl-6,9-dihydro-naphtho[2,1-b]thiophene-5a,9a-dicarbonitrile

Conditions
ConditionsYield
In dichloromethane for 0.25h; Ambient temperature;A n/a
B 97%
84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

Conditions
ConditionsYield
With sodium disulfite97%
With sodium hydrogencarbonate In water; toluene97%
With 5,6-O-isopropylidene-L-ascorbic acid In 1,2-dimethoxyethane for 6h; UV-irradiation;96%
110-87-2

3,4-dihydro-2H-pyran

84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

Conditions
ConditionsYield
With oxygen; toluene-4-sulfonic acid In 1,2-dichloro-ethane at 83℃; under 760.051 Torr; for 0.5h; Diels-Alder Cycloaddition; Reflux;97%
84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

A

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

B

112145-99-0

7-(o,o'-biphenylene)-3,4-dichloro-1,6-dicyano-9-methylbicyclo<4.4.0>deca-3,8-diene-2,5-dione

Conditions
ConditionsYield
In benzene for 12h; Heating;A 96%
B 78%
132609-51-9

7-Thiophen-2-yl-3a,6-dihydro-benzo[b]thiophene-4,4,5,5-tetracarbonitrile

84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

A

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

B

132609-54-2

7-Thiophen-2-yl-benzo[b]thiophene-4,4,5,5-tetracarbonitrile

Conditions
ConditionsYield
In dichloromethane for 0.0833333h;A n/a
B 96%
91266-61-4

1-cyclopropyl-1-methyldibenzospiro<2.4>heptane

84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

A

4425-82-5

9-methylene-fluorene

B

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

C

112145-98-9

7-(o,o'-biphenylene)-3,4-dichloro-1,6-dicyano-9-cyclopropylbicyclo<4.4.0>deca-3,8-diene-2,4-dione

Conditions
ConditionsYield
In benzene Ambient temperature;A 19%
B 93%
C 56%

((1R,2S)-1-Methoxy-2-pentyl-cyclopropoxy)-trimethyl-silane

A

7367-81-9

methyl (E)-oct-2-enoate

B

35234-16-3

(E)-methyl oct-3-enoate

C

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

D

69668-85-5

methyl (Z)-oct-3-enoate

Conditions
ConditionsYield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In acetonitrile at 60℃; for 20h; Yields of byproduct given;A 76%
B n/a
C 86%
D n/a
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In acetonitrile at 60℃; for 20h; Yield given;A 76%
B n/a
C 86%
D n/a
5273-86-9

C12H16O3

84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

A

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

B

106128-88-5

2,4,5-trimethoxy cinnamaldehyde

Conditions
ConditionsYield
With acetic acid In 1,4-dioxane for 0.5h; Sonication;A n/a
B 85%
142763-11-9

(S)-4-(3,4-dimethoxybenzyl)oxazolidin-2-one

64-18-6

formic acid

84-58-2

2,3-dicyano-5,6-dichloro-p-benzoquinone

A

(R)-4-(3,4-dimethoxybenzoyl)oxazolidin-2-one

B

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

Conditions
ConditionsYield
In water at 60℃; for 3h;A 84%
B n/a

(Z)-1-Methoxy-1-(trimethylsiloxy)-2-ethyl-2-phenylcyclopropane

A

4640-41-9

2,3-dichloro-5,6-dicyanohydroquinone

B

84009-51-8

(Z)-Methyl 3-phenyl-2-pentenoate

C

84009-51-8

methyl (E)-3-phenyl-2-pentenoate

D

Methyl 3-phenyl-3-pentenoate

Conditions
ConditionsYield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In tetrahydrofuran for 6h; Heating; Yield given. Yields of byproduct given;A 82%
B n/a
C n/a
D 48%
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In tetrahydrofuran for 6h; Heating; Yield given;A 82%
B n/a
C n/a
D 48%
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In tetrahydrofuran for 6h; Heating; Yields of byproduct given;A 82%
B 48%
C n/a
D n/a
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  • 4640-41-9  CAS NO.4640-41-9

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    4640-41-9 CAS NO.4640-41-9

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