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Name |
4-Chlorophthalic anhydride |
EINECS | 204-251-9 |
CAS No. | 118-45-6 | Density | 1.594 g/cm3 |
PSA | 43.37000 | LogP | 1.65060 |
Solubility | N/A | Melting Point |
96 °C |
Formula | C8H3ClO3 | Boiling Point | 299.8 °C at 760 mmHg |
Molecular Weight | 182.563 | Flash Point | 142.4 °C |
Transport Information | N/A | Appearance | white crystal powder |
Safety | 26-36/37/39 | Risk Codes | 36/37/38 |
Molecular Structure | Hazard Symbols | N/A | |
Synonyms |
5-chloroisobenzofuran-1,3-dione;4-Chlorophthalic Acid Anhydride; |
Article Data | 39 |
trimellitic anhydride acid chloride
A
phthalic anhydride
B
4-chlorophthalic anhydride
Conditions | Yield |
---|---|
palladium dichloride In melt at 290℃; for 2h; Product distribution; other temperatures and other catalysts (Pd/C, Pd(PPh3)4); | A 1% B 99% |
tetrakis(triphenylphosphine) palladium(0) In melt at 265℃; for 16h; | A 10% B 79% |
Conditions | Yield |
---|---|
With acetic anhydride for 3h; Heating; | 98% |
With acetic anhydride for 1h; Heating; | 90% |
With acetic anhydride for 2h; Reflux; | 88% |
Conditions | Yield |
---|---|
With bis(tri-ortho-tolylphosphine)palladium(0); dicyclohexyl-(2′,4′,6′-triisopropyl-3,6-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine In toluene at 130℃; for 20h; Inert atmosphere; Glovebox; | 84% |
monosodique de l'acide chloro-4 phtalique
4-chlorophthalic anhydride
Conditions | Yield |
---|---|
With thionyl chloride for 2h; Heating; | 70% |
With sulfuric acid In acetic anhydride for 3h; Heating; | |
With thionyl chloride for 2h; Reflux; |
Conditions | Yield |
---|---|
With sulfuric acid; chlorine at 50℃; in Gegenwart von Jod; | |
With chlorine In water at 70℃; for 12h; |
Conditions | Yield |
---|---|
at 280℃; |
Conditions | Yield |
---|---|
With chlorine at 230 - 250℃; |
phthalic anhydride
A
4-chlorophthalic anhydride
B
3-chlorophthalic anhydride
C
4,5-dichlorophthalic anhydride
D
4,6-dichloroisobenzofuran-1,3-diketone
Conditions | Yield |
---|---|
With chlorine at 390℃; Product distribution; var. temp, var. conc. of Cl2; | |
With chlorine at 420℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts; | |
With chlorine at 390℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
at 340℃; |
Structure of 4-Chlorophthalic anhydride (CAS NO.118-45-6):
IUPAC Name: 5-chloro-2-benzofuran-1,3-dione
Empirical Formula: C8H3ClO3
Molecular Weight: 182.5606
EINECS: 204-251-9
Index of Refraction: 1.626 Molar
Refractivity: 40.57 cm3
Molar Volume: 114.5 cm3
Polarizability: 16.08 10-24cm3
Surface Tension: 61.1 dyne/cm
Density: 1.594 g/cm3
Flash Point: 142.4 °C
Enthalpy of Vaporization: 53.99 kJ/mol
Melting Point: 96°C
Boiling Point: 299.8 °C at 760 mmHg
Vapour Pressure: 0.00116 mmHg at 25°C
Product Categories: Acids and Derivatives;Phthalic Acids, Esters and Derivatives
Canonical SMILES: C1=CC2=C(C=C1Cl)C(=O)OC2=O
InChI: InChI=1S/C8H3ClO3/c9-4-1-2-5-6(3-4)8(11)12-7(5)10/h1-3H
InChIKey: BTTRMCQEPDPCPA-UHFFFAOYSA-N
4-Chlorophthalic anhydride (CAS NO.118-45-6) can be produced by chlorination of phthalic anhydride.
Risk Statements: 36/37/38
36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36/37/39
26: 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
4-Chlorophthalic anhydride , its cas register number is 118-45-6. It also can be called 1,3-isobenzofurandione, 5-chloro- ;
5-Chloro-2-benzofuran-1,3-dione ; 4-Chlorophthalic anhydride ; phthalic anhydride, 4-chloro- .