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CAS No.: | 569-42-6 |
---|---|
Name: | 1,8-DIHYDROXYNAPHTHALENE |
Article Data: | 42 |
Molecular Structure: | |
Formula: | C10H8O2 |
Molecular Weight: | 160.172 |
Synonyms: | 1,8-Dihydroxynaphthalene;Naphthalene-1,8-diol; |
EINECS: | 209-316-5 |
Density: | 1.33g/cm3 |
Melting Point: | 142-143℃ |
Boiling Point: | 375.4 °C at 760 mmHg |
Flash Point: | 193.5 °C |
Hazard Symbols: | Xi |
Risk Codes: | 41 |
Safety: | 26-39 |
PSA: | 40.46000 |
LogP: | 2.25100 |
Conditions | Yield |
---|---|
With potassium hydroxide at 300℃; for 0.5h; | 86% |
With potassium hydroxide; water at 225℃; for 0.5h; | 83% |
With potassium hydroxide at 300℃; for 0.5h; | 80% |
1,8-dihydroxynaphthalene
Conditions | Yield |
---|---|
With dihydrogen peroxide In tetrahydrofuran; methanol; dodecane at 20℃; | 67% |
1,8-dihydroxynaphthalene
Conditions | Yield |
---|---|
With potassium hydroxide for 0.25h; Inert atmosphere; | 60% |
1,8-dihydroxynaphthalene
Conditions | Yield |
---|---|
Stage #1: 1,8-naphthosultone With potassium hydroxide; sodium hydroxide at 210℃; for 0.75h; Inert atmosphere; Stage #2: With sulfuric acid; water at 0℃; | 53% |
Conditions | Yield |
---|---|
at 230℃; in der Kalischmelze; |
Conditions | Yield |
---|---|
With sulfuric acid at 150℃; |
Conditions | Yield |
---|---|
bei der Kalischmelze; |
8-anilino-1-naphthalenesulfonate
A
1,8-dihydroxynaphthalene
B
8-amino-1-naphthol
C
8-hydroxy-naphthalene-1-sulfonic acid
D
1-amino-naphthalene
Conditions | Yield |
---|---|
at 220 - 300℃; im Autoklaven; |
Conditions | Yield |
---|---|
With sodium hydroxide at 220 - 230℃; unter Druck; | |
Multi-step reaction with 2 steps 1: 92 percent / NaNO2, aq. HCl / H2O / 1 h / Heating 2: KOH / neat (no solvent) / 1.75 h / 250 - 255 °C View Scheme |
8-methoxy-naphthalen-1-ol
A
1,8-dihydroxynaphthalene
B
1-methyl pyridinium iodide
Conditions | Yield |
---|---|
With pyridine; pyridine hydroiodide at 115℃; Rate constant; LiI, KI, var. temp.; |
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Molecular Structure of 1,8-Naphthalenediol (CAS NO.569-42-6):
IUPAC Name: naphthalene-1,8-diol
Empirical Formula: C10H8O2
Molecular Weight: 160.1693
H bond acceptors: 2
H bond donors: 2
Freely Rotating Bonds: 2
Polar Surface Area: 18.46 Å2
Index of Refraction: 1.725
Molar Refractivity: 47.85 cm3
Molar Volume: 120.4 cm3
Surface Tension: 64.4 dyne/cm
Density: 1.33 g/cm3
Flash Point: 193.5 °C
Enthalpy of Vaporization: 64.73 kJ/mol
Boiling Point: 375.4 °C at 760 mmHg
Vapour Pressure: 3.62E-06 mmHg at 25°C
EINECS: 209-316-5
InChI
InChI=1/C10H8O2/c11-8-5-1-3-7-4-2-6-9(12)10(7)8/h1-6,11-12H
Smiles
c12c(O)cccc2cccc1O
1,8-Naphthalenediol , with CAS number of 569-42-6, can be called 1,8-Dihydroxynaphthalene ; Naphthalene-1,8-diol .