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CAS No.: | 99469-99-5 |
---|---|
Name: | 3-Ethoxy-4-ethoxycarbonyl phenylacetic acid |
Article Data: | 9 |
Molecular Structure: | |
Formula: | C13H16O5 |
Molecular Weight: | 252.267 |
Synonyms: | 3-Ethoxy-4-(ethoxycarbonyl)benzeneaceticacid;Ethyl 4-carboxymethyl-2-ethoxybenzoate;[3-Ethoxy-4-(ethoxycarbonyl)phenyl]aceticacid;3-Ethoxy-4-ethoxycarbonylphenyl acetic acid; |
EINECS: | 427-630-2 |
Density: | 1.191 g/cm3 |
Melting Point: | 78-80 °C |
Boiling Point: | 414.816 °C at 760 mmHg |
Flash Point: | 155.936 °C |
Appearance: | white to pale yellow solid |
Hazard Symbols: | Xi |
Risk Codes: | 41 |
Safety: | 26-39 |
PSA: | 72.83000 |
LogP: | 1.88910 |
ethyl 2-ethoxy-4-(2-ethoxy-2-oxoethyl)benzoate
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
With hydrogenchloride In water pH=3; Large scale; | 90.5% |
Stage #1: ethyl 2-ethoxy-4-ethoxycarbonylmethyl-benzoate With sodium hydroxide; water In methanol at 10 - 15℃; for 1 - 2h; Stage #2: With hydrogenchloride In water at 0 - 5℃; pH=3 - 4; | 77.8% |
With sodium hydroxide In ethanol at 23 - 25℃; for 1.5h; | 59% |
With water; sodium hydroxide In ethanol at 30℃; for 1h; |
2-ethoxy-4-methylbenzoic acid
carbonic acid dimethyl ester
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
With lithium diisopropyl amide In tetrahydrofuran at -80 - -70℃; for 4h; Temperature; | 86.2% |
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
With hydrogenchloride In water pH=3; | 78.1% |
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
With hydrogenchloride In water pH=3; | 77.7% |
carbon dioxide
ethyl 2-ethoxy-4-methyl-benzoate
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
Stage #1: With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -30℃; for 0.5h; Stage #2: ethyl 2-ethoxy-4-methyl-benzoate With N,N,N,N,N,N-hexamethylphosphoric triamide In tetrahydrofuran; hexane at -75℃; for 2h; Stage #3: carbon dioxide In tetrahydrofuran; hexane at -75 - 10℃; for 0.5h; | 72.7% |
Stage #1: ethyl 2-ethoxy-4-methyl-benzoate With 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -75℃; Inert atmosphere; Industrial scale; Stage #2: carbon dioxide In tetrahydrofuran; hexane at -75℃; Industrial scale; | 67% |
Stage #1: With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -30℃; for 0.5h; Stage #2: ethyl 2-ethoxy-4-methyl-benzoate With 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone In tetrahydrofuran; hexane at -75℃; for 2h; Stage #3: carbon dioxide In tetrahydrofuran; hexane at -75 - 20℃; | 59.5% |
Stage #1: ethyl 2-ethoxy-4-methyl-benzoate With N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: carbon dioxide In tetrahydrofuran; hexane at -78 - 10℃; | 23% |
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
Stage #1: ethyl 2-ethoxy-5-(2-oxo-2-(quinolin-8-ylamino)ethyl)benzoate With ozone In dichloromethane at -78℃; Inert atmosphere; Stage #2: With copper dichloride In 1,4-dioxane; water at 100℃; for 1h; Inert atmosphere; Microwave irradiation; | 42% |
A
2-ethoxy-[4-(carboxymethyl)]benzoic acid
B
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
With hydrogenchloride; sodium nitrite at 35℃; for 2h; | A n/a B 39% |
2-hydroxy-p-toluic acid
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: K2CO3 / diethyl ether / 30 h / 150 °C 2: N-bromosuccinimide, 2,2'-azo-bis-(isobutyronitril) / CCl4 3: 97 percent / aq. N-benzyl-tri-n-butylammonium-chloride / CH2Cl2 / 43 h / 20 °C 4: HCl / Heating 5: 59 percent / NaOH / ethanol / 1.5 h / 23 - 25 °C View Scheme | |
Multi-step reaction with 5 steps 1: K2CO3 / diethyl ether / 30 h / 150 °C 2: N-bromosuccinimide, 2,2'-azo-bis-(isobutyronitril) / CCl4 3: 97 percent / aq. N-benzyl-tri-n-butylammonium-chloride / CH2Cl2 / 43 h / 20 °C 4: aq. HCl / 1.5 h / 20 - 23 °C 5: 39 percent / aq. NaNO2, aq. HCl / 2 h / 35 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: potassium carbonate / dimethyl sulfoxide / 10.5 h / 40 °C 2.1: diisopropylamine; n-butyllithium; N,N,N,N,N,N-hexamethylphosphoric triamide / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere 2.2: -78 - 10 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: potassium carbonate / dimethyl sulfoxide / 11 h / 40 °C 2.1: diisopropylamine; n-butyllithium; N,N,N,N,N,N-hexamethylphosphoric triamide / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere 2.2: -78 - 10 °C View Scheme |
ethyl 2-ethoxy-4-methyl-benzoate
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: N-bromosuccinimide, 2,2'-azo-bis-(isobutyronitril) / CCl4 2: 97 percent / aq. N-benzyl-tri-n-butylammonium-chloride / CH2Cl2 / 43 h / 20 °C 3: HCl / Heating 4: 59 percent / NaOH / ethanol / 1.5 h / 23 - 25 °C View Scheme | |
Multi-step reaction with 4 steps 1: N-bromosuccinimide, 2,2'-azo-bis-(isobutyronitril) / CCl4 2: 97 percent / aq. N-benzyl-tri-n-butylammonium-chloride / CH2Cl2 / 43 h / 20 °C 3: aq. HCl / 1.5 h / 20 - 23 °C 4: 39 percent / aq. NaNO2, aq. HCl / 2 h / 35 °C View Scheme | |
Multi-step reaction with 2 steps 1: dihydrogen peroxide; copper dichloride; bis(diphenylphosphino)ethylamine / tetrahydrofuran / 10 h / 15001.5 Torr / Reflux 2: hydrogenchloride / water / pH 3 View Scheme | |
Multi-step reaction with 2 steps 1: tert.-butylhydroperoxide; palladium dichloride; depe / tetrahydrofuran / 20 h / 15001.5 Torr / Reflux 2: hydrogenchloride / water / pH 3 / Large scale View Scheme |
ethyl 4-bromomethyl-2-ethoxy-benzoate
2-(3-ethoxy-4-(ethoxycarbonyl)phenyl) acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 97 percent / aq. N-benzyl-tri-n-butylammonium-chloride / CH2Cl2 / 43 h / 20 °C 2: HCl / Heating 3: 59 percent / NaOH / ethanol / 1.5 h / 23 - 25 °C View Scheme | |
Multi-step reaction with 3 steps 1: 97 percent / aq. N-benzyl-tri-n-butylammonium-chloride / CH2Cl2 / 43 h / 20 °C 2: aq. HCl / 1.5 h / 20 - 23 °C 3: 39 percent / aq. NaNO2, aq. HCl / 2 h / 35 °C View Scheme |
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Product Name: 4-Ethoxycarbonyl-3-ethoxyphenyla-cetic acid (CAS NO.99469-99-5)
IUPAC Name: 3-Ethoxy-4-ethoxycarbonyl phenylacetic acid
Molecular Formula: C13H16O5
Molecular Weight: 252.26
Appearance: white to pale yellow solid
Density: 1.191
Melting Point: 78-80 °C
Boiling Point: 414.8 °C at760mmHg
Flash Point: 155.9 °C
Surface Tension: 44.42 dyne/cm
Enthalpy of Vaporization: 70.41 kJ/mol
Index of Refraction: 1.527
Molar Refractivity: 65.084 cm3
Molar Volume: 211.785 cm3
Categories: Pharmaceutical material and intermeidates; Aromatic Phenylacetic Acids and Derivatives; Aromatics
4-Ethoxycarbonyl-3-ethoxyphenyla-cetic acid (CAS NO.99469-99-5) is used as an intermediate for the synthesis of Repaglinide.
Safety Information of 4-Ethoxycarbonyl-3-ethoxyphenyla-cetic acid (CAS NO.99469-99-5):
Hazard Codes:Xi
4-Ethoxycarbonyl-3-ethoxyphenyla-cetic acid , its CAS NO. is 99469-99-5, the synonyms are 3-Ethoxy-4-(ethoxycarbonyl)benzeneacetic acid ; 2-[(4-Ethoxycarbonyl)-3-ethoxyphenyl] acetic acid .