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42523-29-5

Basic Information
CAS No.: 42523-29-5
Name: 2,7-Dihydroxy-9-fluorenone
Article Data: 15
Molecular Structure:
Molecular Structure of 42523-29-5 (2,7-Dihydroxy-9-fluorenone)
Formula: C13H8O3
Molecular Weight: 212.205
Synonyms: 2,7-Dihydroxy-9H-fluoren-9-one;2,7-Dihydroxyfluoren-9-one;RMI 15152;9H-Fluoren-9-one,2,7-dihydroxy-;
Density: 1.497 g/cm3
Melting Point: 338 °C
Boiling Point: 444.5 °C at 760 mmHg
Flash Point: 236.7 °C
Appearance: Brown red powder
PSA: 57.53000
LogP: 2.30920
Synthetic route
53133-99-6

9-oxo-9H-fluorene-2,7-diyl diacetate

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
With potassium hydroxide for 2h; Heating;97.6%
765944-63-6

4,4'-dihydroxy-biphenyl-2-carboxylic acid methyl ester

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
With zinc(II) chloride at 110 - 120℃; for 2h;95%
Multi-step reaction with 2 steps
1: sodium hydroxide / ethanol / 78 °C
2: thionyl chloride / 79 °C
View Scheme
53197-57-2

4,4'-dihydroxy-[1,1'-biphenyl]-2-carboxylic acid

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
With zinc(II) chloride at 210℃; Neat (no solvent);90%
With zinc(II) chloride
With zinc(II) chloride at 200℃;
With thionyl chloride at 79℃; Friedel-Crafts acylation;
Multi-step reaction with 2 steps
1: sulfuric acid / methanol / 2 h / Reflux
2: zinc(II) chloride / 2 h / 110 - 120 °C
View Scheme
42523-28-4

2,7-dimethoxy-9H-fluorenon-9-one

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
With hydrogen bromide; acetic acid In water for 12h; Reflux;87%
With hydrogen bromide In acetic acid
202865-84-7

4-bromo-3-iodo-phenol

100-83-4

meta-hydroxybenzaldehyde

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
With palladium diacetate; potassium hydrogencarbonate; DL-Pro-NHMe In tert-Amyl alcohol at 120℃; for 24h; Inert atmosphere;74%
89450-82-8

2,7-dihydroxy-9-oxo-fluorene-1-carboxylic acid

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
With calcium oxide melting;

Fluorenon-Tetrazonium Tetrafluoroborat

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
With sulfuric acid
diazotized 2.7-diamino-fluorenone

diazotized 2.7-diamino-fluorenone

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

71597-85-8

(p-hydroxyphenyl)boronic acid

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium carbonate / tris(dibenzylideneacetone)dipalladium(0) / 1,2-dimethoxy-ethane; H2O / 85 °C
2: sodium hydroxide / ethanol / 78 °C
3: thionyl chloride / 79 °C
View Scheme
154607-00-8

methyl 2-bromo-5-hydroxybenzoate

42523-29-5

2,7-dihydroxy-9H-fluoren-9-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium carbonate / tris(dibenzylideneacetone)dipalladium(0) / 1,2-dimethoxy-ethane; H2O / 85 °C
2: sodium hydroxide / ethanol / 78 °C
3: thionyl chloride / 79 °C
View Scheme
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Chemistry

Structure of 2,7-Dihydroxy-9-fluorenone (CAS NO.42523-29-5):

Empirical Formula: C13H8O3
Molecular Weight: 212.2008 
Index of Refraction: 1.749
Molar Refractivity: 57.68 cm3
Molar Volume: 141.6 cm3
Polarizability: 22.86×10-24cm3
Surface Tension: 77.2 dyne/cm
Density: 1.497 g/cm3
Flash Point: 236.7 °C
Enthalpy of Vaporization: 72.93 kJ/mol
Boiling Point: 444.5 °C at 760 mmHg
Vapour Pressure: 1.63E-08 mmHg at 25°C 
Product Categories: Fluorene Derivatives;Fluorenes, Flurenones 
Synonyms of 2,7-Dihydroxy-9-fluorenone (CAS NO.42523-29-5): 9H-fluoren-9-one, 2,7-dihydroxy- ; 2,7-Dihydroxy-9-fluorenone .