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Basic Information
CAS No.: 3008-40-0
Name: cyclooctane-1,2-dione
Article Data: 38
Molecular Structure:
Molecular Structure of 3008-40-0 (cyclooctane-1,2-dione)
Formula: C5H6 O2
Molecular Weight: 98.1014
Synonyms: cyclooctane-1,2-dione
Density: 1.038g/cm3
Melting Point: 56 °C
Boiling Point: 234.5°C at 760 mmHg
Flash Point: 86.9°C
PSA: 34.14000
LogP: 1.47880
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Conditions
ConditionsYield
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2-chlorocyclopentane-1-ol

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With iron(III) chloride hexahydrate In water at 100℃; for 0.166667h;80%
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2-keto cyclopentanone acetal

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With sulfuric acid; silica gel In dichloromethane for 24h; Ambient temperature;73%
With sulfuric acid; silica gel In dichloromethane60%
109314-64-9

1-nitrocyclopentene oxide

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With chloro-trimethyl-silane; triethylamine Mechanism; 1.) DMSO, dichloromethane, 0 deg C, 5 h; 2.) dichloromethane, 0 -> 30 deg C, 1 h; further α-nitroepoxides;72%
With triethylamine; tetrakis(triphenylphosphine) palladium(0) In benzene for 7h; Heating;50%
With chloro-trimethyl-silane; triethylamine 1.) DMSO, dichloromethane, 0 deg C, 5 h; 2.) dichloromethane, 0 -> 30 deg C, 1 h; Yield given. Multistep reaction;
With chloro-trimethyl-silane; triethylamine 1.) CH2Cl2, 0 deg C, 5 h, 2.) CH2Cl2, 0 deg C to r.t., 1 h; Yield given. Multistep reaction;
694-28-0

2-chlorocyclopentanone

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With iron(III) chloride In water at 100℃; for 0.333333h;66.47%
10088-87-6

4,5-dioxo-cyclopentane-1,3-dicarboxylic acid diethyl ester

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With hydrogenchloride Heating;61.7%
With sulfuric acid man giesst auf Eis;
With sulfuric acid
With sulfuric acid
52190-34-8

2-(methylthio)cyclopentanone

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With CuCl2-CuO In water; acetone at 35℃; for 0.5h;60%
With copper(II) oxide; copper dichloride In water; acetone at 35℃; for 0.5h;60%
285-67-6

Cyclopentene oxide

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With oxygen; copper(II) bis(trifluoromethanesulfonate); dimethyl sulfoxide; bismuth at 100℃; for 2h;52%
6838-66-0

1,2-bis((trimethylsilyl)oxy)cyclopent-1-ene

A

3008-40-0

cyclopentane-1,2-dione

B

3019-83-8

3-bromo-2-hydroxycyclopent-2-en-1-one

Conditions
ConditionsYield
With bromine In tetrachloromethaneA 15%
B 40%

2-acetoxy-5-bromo-cyclopentanone

3008-40-0

cyclopentane-1,2-dione

Conditions
ConditionsYield
With hydrogenchloride
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