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Cas Database |
| Name |
Ethyl oxalyl monochloride |
EINECS | 225-285-0 |
| CAS No. | 4755-77-5 | Density | 1.281 g/cm3 |
| PSA | 43.37000 | LogP | 0.31490 |
| Solubility | Slightly miscible with water. | Melting Point |
135oC |
| Formula | C4H5ClO3 | Boiling Point | 137 °C at 760 mmHg |
| Molecular Weight | 136.535 | Flash Point | 41.7 °C |
| Transport Information | UN 2920 | Appearance | clear liquid |
| Safety | 8-45-36/37/39-26-16 | Risk Codes | 34-29-20/21/22-14-10-37-36 |
| Molecular Structure |
|
Hazard Symbols |
 C,  F
|
| Synonyms |
Aceticacid, chlorooxo-, ethyl ester (9CI);Glyoxylic acid, chloro-, ethyl ester(6CI,7CI,8CI);1-(Chlorocarbonyl)formic acid ethyl ester;Chloroglyoxylic acidethyl ester;Ethoxalyl chloride;Ethyl (chlorocarbonyl)carboxylate;Ethyl (chloroformyl)formate;Ethyl2-chloro-2-oxoacetate;Ethyl 2-chloro-2-oxoethanoate;Ethyl chloroglyoxylate;Ethyl chlorooxoacetate;Monoethyl oxalate chloride;Monoethyl oxalate monochloride;Monoethyl oxaloylchloride;NSC 80644;Oxalic acid chloride ethyl ester;Oxalic acid monoethyl estermonochloride;Oxalyl chloride ethyl ester; |
Article Data | 46 |
Ethyl oxalyl monochloride Synthetic route
- 95-92-1
oxalic acid diethyl ester
A
- 79-37-8
oxalyl dichloride
B
- 75-00-3
chloroethane
C
- 63938-37-4
1,2-diethoxy-tetrachloro-ethane
D
- 98019-44-4
ethoxy-dichloro-acetyl chloride
E
- 4755-77-5
Ethyl oxalyl chloride
| Conditions | Yield |
|---|---|
| With phosphorus pentachloride; manganese(ll) chloride at 90℃; for 5h; Product distribution; other catalysts (CuCl2, ZnCl2, CdCl2, CrCl3, FeCl3, CoCl2, PdCl2) and temperatures (from 70 to 130 deg C); | A n/a B n/a C n/a D n/a E 83.7% |
| Conditions | Yield |
|---|---|
| With phosphorus pentachloride at 90℃; for 5h; | A n/a B 83.7% |
| Conditions | Yield |
|---|---|
| In dichloromethane at 0 - 20℃; for 2.33333h; | 81% |
| at 0 - 20℃; for 3h; | 75% |
| at 0 - 20℃; for 2.33333h; | 69.6% |
| Conditions | Yield |
|---|---|
| With thionyl chloride In diethyl ether at 60℃; Cooling with ice; Inert atmosphere; | 76.2% |
| With thionyl chloride |
- 86523-76-4
N-(4-aminophenyl)-3-<4-(2-pyridinyl)-1-piperazinyl>propanamide
A
- 4755-77-5
Ethyl oxalyl chloride
B
- 86523-79-7
N-<4-<(aminocarbonyl)amino>phenyl>-3-<4-(2-pyridinyl)-1-piperazinyl>propanamide
| Conditions | Yield |
|---|---|
| With hydrogenchloride for 8h; | A 3% B 16% |
| Conditions | Yield |
|---|---|
| With thionyl chloride | |
| With phosphorus pentachloride | |
| With oxalyl dichloride In N,N-dimethyl-formamide at 20℃; for 4h; |
| Conditions | Yield |
|---|---|
| With platinum |
| Conditions | Yield |
|---|---|
| With phosphorus pentachloride anschliessend Destillieren des gebieldeten Aethoxydichloressigsaeure-aethylesters im Vakuum, Erhitzen auf 160-170grad und wiederholt Fraktionieren; | |
| With phosphorus pentachloride at 130℃; darauffolgende Vakuum-Destillation und Zerlegung des Aethoxy-dichloressigsaeureaethylesters durch mehrfache Destillation bei gewoehnlichem Druck; | |
| With phosphorus pentachloride | |
| With phosphorus pentachloride | |
| Stage #1: oxalic acid diethyl ester With potassium acetate In water at 70 - 80℃; for 2h; Stage #2: With thionyl chloride In diethyl ether for 15h; Cooling with ice; Reflux; | 12.22 g |
- 90952-82-2
Dichlor-isobutyloxy-essigsaeure-ethylester
- 4755-77-5
Ethyl oxalyl chloride
| Conditions | Yield |
|---|---|
| Heating; |
| Conditions | Yield |
|---|---|
| With phosphorus pentachloride Product distribution; 1) 95 deg C to 100 deg C, 4d, 2) 180 deg C to 200 deg C, 6h; |
Ethyl oxalyl monochloride Chemical Properties
Product Name: Acetic acid, 2-chloro-2-oxo-, ethyl ester (CAS NO.4755-77-5)
Molecular Formula: C4H5ClO3
Molecular Weight: 136.5337g/mol
Mol File: 4755-77-5.mol
EINECS: 225-285-0
Melting Point: 135 °C
Boiling point: 137 °C at 760 mmHg
Flash Point: 41.7 °C
Density: 1.281 g/cm3
Surface Tension: 35.2 dyne/cm
Enthalpy of Vaporization: 37.44 kJ/mol
Vapour Pressure: 7.19 mmHg at 25°C
XLogP3-AA: 1.4
H-Bond Donor: 0
H-Bond Acceptor: 3
Structure Descriptors of Acetic acid, 2-chloro-2-oxo-, ethyl ester (CAS NO.4755-77-5):
IUPAC Name: ethyl 2-chloro-2-oxoacetate
Canonical SMILES: CCOC(=O)C(=O)Cl
InChI: InChI=1S/C4H5ClO3/c1-2-8-4(7)3(5)6/h2H2,1H3
InChIKey: OWZFULPEVHKEKS-UHFFFAOYSA-N
Ethyl oxalyl monochloride Safety Profile
Safety Information of Acetic acid, 2-chloro-2-oxo-, ethyl ester (CAS NO.4755-77-5):
Hazard Codes: C
Risk Statements: R10;R34;R37
10: Flammable
34: Causes burns
37: Irritating to the respiratory system
Safety Statements: S26;S36/37/39;S45
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
Ethyl oxalyl monochloride Specification
Acetic acid, 2-chloro-2-oxo-, ethyl ester , its CAS NO. is 4755-77-5, the synonyms are EINECS 225-285-0 ; Ethoxalyl chloride ; Ethyl 2-chloro-2-oxoacetate ; Ethyl chloroglyoxylate ; Ethyl oxalyl chloride ; Glyoxylic acid, chloro-, ethyl ester ; Monoethyl oxaloyl chloride ; NSC 80644 ; Oxalic acid monoethyl ester chloride ; Oxalyl chloride, ethyl ester ; Acetic acid, chlorooxo-, ethyl ester .
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