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CAS No.: | 619-66-9 |
---|---|
Name: | 4-Formylbenzoic acid |
Article Data: | 181 |
Molecular Structure: | |
Formula: | C8H6O3 |
Molecular Weight: | 150.134 |
Synonyms: | Terephthalaldehydicacid (6CI,7CI,8CI);4-Carboxybenzaldehyde;4-Carboxylbenzaldehyde;NSC 15797;Terephthalaldehyde acid;Terephthaldehydicacid;p-Benzoic acid aldehyde;p-Carboxybenzaldehyde;p-Formylbenzoic acid; |
EINECS: | 210-607-4 |
Density: | 1.321 g/cm3 |
Melting Point: | 247 °C(lit.) |
Boiling Point: | 332.6 °C at 760 mmHg |
Flash Point: | 169.2 °C |
Solubility: | Soluble in water, methanol, DMSO, ether, and chloroform. |
Appearance: | Yellowish fine crystalline powder |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38-33 |
Safety: | 26-36-24/25 |
PSA: | 54.37000 |
LogP: | 1.19730 |
Conditions | Yield |
---|---|
With copper acetylacetonate; oxygen; sodium hydroxide; 1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene In water at 50℃; under 760.051 Torr; for 12h; Sealed tube; | 99% |
With 4H3N*4H(1+)*CuMo6O18(OH)6(4-); water; oxygen; sodium carbonate at 50℃; under 760.051 Torr; for 12h; | 99% |
With carbon dioxide; potassium carbonate; 1,3-bis(mesityl)imidazolium chloride In dimethyl sulfoxide at 20℃; under 760.051 Torr; for 72h; | 95% |
4-formyl-N,N-bis(pyridin-2-ylmethyl)benzamide
4-Carboxybenzaldehyde
Conditions | Yield |
---|---|
Stage #1: 4-formyl-N,N-bis(pyridin-2-ylmethyl)benzamide With methanol; copper(II) bis(trifluoromethanesulfonate) at 20℃; for 16h; Stage #2: With barium(II) hydroxide In methanol; water at 20℃; Stage #3: With hydrogenchloride In methanol; water | 99% |
Conditions | Yield |
---|---|
With air; hydrogen bromide; acetic acid; cobalt(II) acetate; manganese(II) acetate at 180℃; under 25745 Torr; for 0.166667h; | A 98.3% B 1.4% |
With 9,10-Dibromoanthracene; acetic acid; cobalt(II) acetate; cerium(III) acetate at 165℃; under 25745 Torr; for 0.166667h; | A 98.2% B 1.1% |
With 9,10-Dibromoanthracene; acetic acid; cobalt(II) acetate; manganese(II) acetate at 170℃; under 25745 Torr; for 0.166667h; | A 97.5% B 1.9% |
para-xylene
A
terephthalic acid
B
4-methyl-benzaldehyde
C
4-Carboxybenzaldehyde
D
p-Toluic acid
Conditions | Yield |
---|---|
With hydrogen bromide; oxygen; acetic acid; cobalt(II) acetate; manganese(II) acetate In water at 190℃; under 16501.7 Torr; for 1h; Product distribution / selectivity; | A 98.1% B 0.2% C 0.4% D 0.4% |
With oxygen; acetic acid; palladium diacetate; antimony(III) acetate In water at 182 - 195℃; under 16501.7 - 20929.4 Torr; for 1 - 1.5h; Product distribution / selectivity; | A 50.3% B 7.2% C 6.4% D 6.2% |
With hydrogen bromide; oxygen; acetic acid; zirconium oxyacetate; cobalt(II) acetate In water at 190℃; under 16501.7 Torr; for 1h; Product distribution / selectivity; | A 4.9% B 3% C 1.9% D 36.9% |
Conditions | Yield |
---|---|
With C13H26B(1-)*K(1+) In tetrahydrofuran for 24h; Ambient temperature; | 98% |
carbon dioxide
5,5-dimethyl-2-(4-formylphenyl)-1,3,2-dioxaborinane
4-Carboxybenzaldehyde
Conditions | Yield |
---|---|
With potassium tert-butylate; copper(l) chloride; 1,3-bis[2,6-diisopropylphenyl]imidazolium chloride In tetrahydrofuran at 70℃; under 760.051 Torr; for 24h; | 97% |
Stage #1: carbon dioxide; 5,5-dimethyl-2-(4-formylphenyl)-1,3,2-dioxaborinane With potassium tert-butylate; silver(I) acetate; triphenylphosphine In tetrahydrofuran at 70℃; under 15201 Torr; for 16h; Inert atmosphere; Autoclave; Stage #2: With hydrogenchloride In tetrahydrofuran; water Inert atmosphere; | 76% |
Conditions | Yield |
---|---|
With [PhCOPd(PtBu3)I]; dtbpf In diethylene glycol dimethyl ether at 120℃; for 18h; Inert atmosphere; | 97% |
diphenylmethylsilanecarboxylic acid
p-(iodophenyl)carboxaldehyde
4-Carboxybenzaldehyde
Conditions | Yield |
---|---|
With potassium trimethylsilonate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; bis(dibenzylideneacetone)-palladium(0) In toluene at 40℃; for 0.333333h; | 97% |
Conditions | Yield |
---|---|
Stage #1: carbon dioxide With o-phenylenebis(diphenylphosphine); copper(II) acetate monohydrate In 1,4-dioxane at 65℃; for 0.333333h; Schlenk technique; Stage #2: 4-bromo-benzaldehyde With palladium diacetate; triethylamine; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene In 1,4-dioxane; toluene at 100℃; for 2h; Schlenk technique; Sealed tube; | 97% |
Stage #1: carbon dioxide With o-phenylenebis(diphenylphosphine); copper(II) acetate monohydrate In 1,4-dioxane at 60℃; for 0.416667h; Schlenk technique; Stage #2: 4-bromo-benzaldehyde With palladium diacetate; triethylamine; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene In 1,4-dioxane; toluene at 100℃; for 6h; Schlenk technique; | 66% |
acetic acid
p-Toluic acid
A
terephthalic acid
B
3-hydroxymethyl-benzoic acid
C
p-acetoxymethyl benzoic acid
D
4-Carboxybenzaldehyde
Conditions | Yield |
---|---|
With N-hydroxyphthalimide; air; cobalt(II) acetate; manganese(II) acetate at 150℃; under 22800 Torr; for 3h; | A 95% B n/a C n/a D n/a |
Empirical Formula: C8H6O3
Molecular Weight: 150.1314 g/mol
Index of Refraction: 1.62
Density: 1.321 g/cm3
Flash Point: 169.2 °C
Melting point: 247 °C(lit.)
Sensitive: Air Sensitive
Enthalpy of Vaporization: 60.74 kJ/mol
Boiling Point: 332.6 °C at 760 mmHg
Vapour Pressure: 5.72E-05 mmHg at 25 °C
Appearance: Yellowish fine crystalline powder
Structure of 4-Formylbenzoic acid (CAS NO.619-66-9):
IUPAC Name: 4-Formylbenzoic acid
Product Category of 4-Formylbenzoic acid (CAS NO.619-66-9): Intermediates of Dyes and Pigments;Aromatic Aldehydes & Derivatives;Benzaldehyde
4-Formylbenzoic acid (CAS NO.619-66-9) has been used as intermediate of medicine, pesticides, and fluorescent brighteners.
4-Formylbenzoic acid (CAS NO.619-66-9) hasn't been listed as a carcinogen by NTP, IARC, ACGIH, or CA Prop 65. You can see actual entry in RTECS for complete information.
Hazard Codes: Xi
Risk Statements: 36/37/38-33
R33:Danger of cumulative effects.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-24/25
S24/25:Avoid contact with skin and eyes.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
4-Formylbenzoic acid , its cas register number is 619-66-9. It also can be called 4-Carboxybenzaldehyde ; p-Phthalaldehydic acid ; and Terephthalaldehydic acid . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Then you have the ingesting of the product: If victim is conscious and alert, give 2-4 cupfuls of milk or water. Do not induce vomiting. In addition, 4-Formylbenzoic acid (CAS NO.619-66-9) could be stable under normal temperatures and pressures. It is not compatible with strong oxidizing agents, strong bases, and you must not take it with incompatible materials, strong oxidants. And also prevent it to broken down into hazardous decomposition products: irritating and toxic fumes and gases, carbon monoxide, carbon dioxide.