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86-90-8

Basic Information
CAS No.: 86-90-8
Name: 4-Bromophthalic anhydride
Article Data: 27
Molecular Structure:
Molecular Structure of 86-90-8 (4-Bromophthalic anhydride)
Formula: C8H3BrO3
Molecular Weight: 227.014
Synonyms: Phthalicanhydride, 4-bromo- (6CI,7CI,8CI);4-Bromo-1,2-benzenedicarboxylic anhydride;5-Bromo-1,3-isobenzofurandione;1,3-Isobenzofurandione,5-bromo-;
EINECS: 201-707-9
Density: 1.911
Melting Point: 107 °C
Boiling Point: 361.8 °C at 760 mmHg
Flash Point: 172.6 °C
Appearance: off-white to white powder
Hazard Symbols: CorrosiveC
Risk Codes: R36/37/38
Safety: S26; S36/37/39
PSA: 43.37000
LogP: 1.75970
Synthetic route
6968-28-1

4-bromophthalic acid

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
With acetic anhydride for 2h; Heating;97%
With acetic anhydride at 140℃; for 2h;84%
With acetic anhydride at 140℃; for 2h;84%
6941-75-9

5-Bromoisoindoline-1,3-dione

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
With urea at 140℃; for 0.333333h;87%
85-44-9

phthalic anhydride

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
With N-benzyl-N,N,N-triethylammonium chloride; bromine; sodium hydroxide In water at 45 - 80℃; for 11.7h; Catalytic behavior; Reagent/catalyst; Temperature;85.4%
Stage #1: phthalic anhydride With bromine; sodium hydroxide In water at 90℃; for 6h;
Stage #2: With thionyl chloride In water at 0℃; Reflux;
79%
Stage #1: phthalic anhydride With bromine; sodium hydroxide In water at 90℃; for 12h; Inert atmosphere;
Stage #2: With thionyl chloride for 5h; Reflux; Inert atmosphere;
71%
118728-51-1, 145551-79-7

5-brom-7-oxa-bicyclo<2.2.1>hept-5-en-2-exo,3-cis-dicarbonsaeureanhydrid

10035-10-6, 12258-64-9

hydrogen bromide

64-19-7

acetic acid

86-90-8

4-bromophthalic anhydride

583-71-1

4-bromo-o-xylene

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aq. KMnO4; Na2CO3; aliquat 336 / 0.75 h / Heating
2: Ac2O / 4 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: 67 percent / potassium hydroxide, potassium permanganate / H2O / 7 h
2: Ac2O / 4 h / Heating
View Scheme
Stage #1: 4-bromo-o-xylene With pyridine; potassium permanganate In water for 24h; Reflux;
Stage #2: With acetic anhydride for 22h; Reflux;
68837-59-2

4-bromo-2-methylbenzoic acid

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: alkaline potassium permanganate
2: durch Destillation
View Scheme
67832-11-5

4-bromo-2-methylbenzonitrile

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: alcoholic NaOH-solution
2: alkaline potassium permanganate
3: durch Destillation
View Scheme
583-75-5

4-Bromo-2-methylaniline

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: durch Austausch von NH2 gegen CN
2: alcoholic NaOH-solution
3: alkaline potassium permanganate
4: durch Destillation
View Scheme
118-45-6

4-chlorophthalic anhydride

86-90-8

4-bromophthalic anhydride

Conditions
ConditionsYield
With bromine In chlorobenzene
86-90-8

4-bromophthalic anhydride

76240-49-8

6-bromo-2,3-dihydrophthalazine-1,4-dione

Conditions
ConditionsYield
Stage #1: 4-bromophthalic anhydride With acetic acid at 125℃; for 1h;
Stage #2: With hydrazine hydrate at 125℃; for 0.5h;
100%
Stage #1: 4-bromophthalic anhydride With acetic acid at 125℃; for 1h;
Stage #2: With hydrazine hydrate at 125℃; for 0.583333h;
100%
Stage #1: 4-bromophthalic anhydride With hydrazine hydrate Inert atmosphere;
Stage #2: With hydrogenchloride In water for 24h; Reflux; Inert atmosphere;
96%
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Chemistry

Molecular Structure of 4-Bromophthalic anhydride (CAS NO.86-90-8):

IUPAC Name: 5-bromo-2-benzofuran-1,3-dione 
Empirical Formula: C8H3BrO3
Molecular Weight: 227.0116
H bond acceptors: 3
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 43.37 ?2
Index of Refraction: 1.651
Molar Refractivity: 43.37 cm3
Molar Volume: 118.7 cm3
Surface Tension: 62.7 dyne/cm
Density: 1.911 g/cm3
Flash Point: 172.6 °C
EINECS: 201-707-9
Melting Point: 107 °C
Enthalpy of Vaporization: 60.77 kJ/mol
Boiling Point: 361.8 °C at 760 mmHg
Vapour Pressure: 2.02E-05 mmHg at 25°C
InChI
InChI=1/C8H3BrO3/c9-4-1-2-5-6(3-4)8(11)12-7(5)10/h1-3H
Smiles
O1C(c2cc(Br)ccc2C1=O)=O
Product Categories: Phthalic Acids, Esters and Derivatives; Furan&Benzofuran

Safety Profile

Safety information of 4-Bromophthalic anhydride (CAS NO.86-90-8):
Hazard Codes: C
Risk Statements:
6/37/38: Irritating to eyes, respiratory system and skin
Safety Statements:
6: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection

Specification

 4-Bromophthalic anhydride , with CAS number of 86-90-8, can be called 4-Bromophthalic acid anhydride ; 1,3-Isobenzofurandione,5-bromo- ; Timtec-bb sbb008534 ; 5-Bromo-1,3-isobenzofurandione ; 4-Bromo-1,2-benzenedicarboxylic anhydride . It is an off-white to white powder.

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