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CAS No.: | 81-86-7 |
---|---|
Name: | 4-Bromo-1,8-naphthalic anhydride |
Article Data: | 40 |
Molecular Structure: | |
Formula: | C12H5BrO3 |
Molecular Weight: | 277.074 |
Synonyms: | Naphthalicanhydride, 4-bromo- (6CI,7CI,8CI);4-Bromo-1,8-naphthalenedicarboxylicanhydride;4-Bromo-1,8-naphthalicanhydride;4-Bromonaphthalene-1,8-dicarboxylicacid anhydride;4-Bromonaphthalic anhydride; |
EINECS: | 201-382-3 |
Density: | 1.812 g/cm3 |
Melting Point: | 217-219 °C(lit.) |
Boiling Point: | 467.2 °C at 760 mmHg |
Flash Point: | 236.3 °C |
Appearance: | White to yellow solid |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 26-37/39 |
PSA: | 43.37000 |
LogP: | 2.91290 |
Conditions | Yield |
---|---|
Stage #1: 1,8-Naphthalic anhydride With bromine; potassium hydroxide In water at 0 - 60℃; for 18h; Stage #2: With sulfuric acid In water at 20℃; Reflux; | 94% |
With bromine; potassium hydroxide In water at 60℃; for 6h; | 80% |
With bromine; potassium hydroxide In water at 60℃; for 6h; | 77% |
Conditions | Yield |
---|---|
With sodium dichromate In water; acetic acid for 12h; Oxidation; Heating; | 80% |
With sodium dichromate; acetic acid for 5h; Reflux; | 80% |
With sodium dichromate; acetic acid for 3h; Reflux; | 80% |
7-bromophenalenone
4-bromo-1,8-naphthalenedicarboxylic anhydride
Conditions | Yield |
---|---|
With chromium(VI) oxide In acetic acid at 80℃; for 1h; | 13% |
4-sulfo-naphthalene-1,8-dicarboxylic acid
4-bromo-1,8-naphthalenedicarboxylic anhydride
Conditions | Yield |
---|---|
With phosphorus pentabromide at 190 - 200℃; |
4-bromo-naphthalene-1,8-dicarboxylic acid
4-bromo-1,8-naphthalenedicarboxylic anhydride
Conditions | Yield |
---|---|
With acetic anhydride |
5-bromoacenaphthene
sulfuric acid
4-bromo-1,8-naphthalenedicarboxylic anhydride
1,5-dibromo-acenaphthene
4-bromo-1,8-naphthalenedicarboxylic anhydride
5-bromoacenaphthylene-1,2-dione
sulfuric acid
water
4-bromo-1,8-naphthalenedicarboxylic anhydride
ethanol
5-bromoacenaphthylene-1,2-dione
sulfuric acid
A
4-bromo-1,8-naphthalenedicarboxylic anhydride
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Systematic Name: 6-Bromo-1H,3H-benzo[de]isochromene-1,3-dione
Molecular Formula: C12H5BrO3
Molecular Weight: 277.07 g/mol
Canonical SMILES: O=C1OC(=O)c2c3c(c(ccc13)Br)ccc2
InChI: InChI=1/C12H5BrO3/c13-9-5-4-8-10-6(9)2-1-3-7(10)11(14)16-12(8)15/h1-5H
EINECS: 201-382-3
Product Categories: Anhydride Monomers; Monomers; Polymer Science
XLogP3-AA: 3.2
H-Bond Acceptor: 3
Surface Tension: 68 dyne/cm
Density: 1.812 g/cm3
Flash Point: 236.3 °C
Enthalpy of Vaporization: 72.91 kJ/mol
Boiling Point: 467.2 °C at 760 mmHg
Melting Point: 217-219 °C(lit.)
Vapour Pressure of 4-Bromo-1,8-naphthalic anhydride (CAS NO.81-86-7): 6.66E-09 mmHg at 25 °C
Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39: Wear suitable gloves and eye/face protection.
WGK Germany of 4-Bromo-1,8-naphthalic anhydride (CAS NO.81-86-7): 3
4-Bromo-1,8-naphthalic anhydride (CAS NO.81-86-7), its Synonyms are 6-Bromo-1H,3H-naphtho(1,8-cd)pyran-1,3-dione ; 4-Bromo-1,8-naphthalic anhydride ; 7-Bromo-1H,3H-naphtho[1,8-cd]pyran-1,3-dione .