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CAS No.: | 133-13-1 |
---|---|
Name: | Diethyl ethylmalonate |
Article Data: | 85 |
Molecular Structure: | |
Formula: | C9H16O4 |
Molecular Weight: | 188.224 |
Synonyms: | Malonicacid, ethyl-, diethyl ester (6CI,7CI,8CI);Propanedioic acid, ethyl-, diethylester (9CI);2-Ethylmalonic acid diethyl ester;Diethyl 2-ethylmalonate;Diethyl a-ethylmalonate;Ethylpropanedioic acid diethyl ester;NSC 8706; |
EINECS: | 205-093-3 |
Density: | 1.02 g/cm3 |
Melting Point: | 0 °C |
Boiling Point: | 211.7 °C at 760 mmHg |
Flash Point: | 88.3 °C |
Solubility: | immiscible with water |
Appearance: | Clear, colorless liquid. |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 24/25-36-26 |
PSA: | 52.60000 |
LogP: | 1.13880 |
Conditions | Yield |
---|---|
With P(MeNCH2CH2)3N In hexane; acetonitrile at 25℃; for 0.5h; | 92% |
With silver(l) oxide | |
With ethanol; magnesium ethylate |
Conditions | Yield |
---|---|
With potassium carbonate; N-benzyl-N,N,N-triethylammonium chloride In N,N-dimethyl-formamide at 60℃; for 4h; | 90% |
With potassium carbonate; N-benzyl-N,N,N-triethylammonium chloride In N,N-dimethyl-formamide at 60℃; for 4h; Product distribution; other solvent, other temperature, other reaction time; | 90% |
With sodium acetylide In benzene at 20 - 25℃; for 0.5h; further reagent (sodium phenylacetylide); | 89% |
Conditions | Yield |
---|---|
With samarium diiodide; tris(dibenzoylmethano)iron(III); tert-butyl alcohol In tetrahydrofuran for 0.5h; Ambient temperature; | 89% |
With hydrogen; palladium on activated charcoal In methanol Product distribution; | |
With (5,10,15,20-tetrakis-4-tolylporphyrinato)(methyl)rhodium(III); isopropyl alcohol In benzene-d6 at 200℃; for 48h; Darkness; Sealed tube; regioselective reaction; | 14 %Spectr. |
diethyl ethylidenemalonate
BuMnCl
A
diethyl (1-methyl-pentyl)malonate
B
ethyl diethyl malonate
Conditions | Yield |
---|---|
In tetrahydrofuran at -30℃; for 2h; | A 87% B 6% |
diethyl ethylidenemalonate
butyl-iodo-manganese
A
diethyl (1-methyl-pentyl)malonate
B
ethyl diethyl malonate
Conditions | Yield |
---|---|
In diethyl ether at -30℃; for 2h; | A 83% B 11% |
diethyl ethylidenemalonate
A
diethyl (1-methyl-pentyl)malonate
B
ethyl diethyl malonate
Conditions | Yield |
---|---|
In tetrahydrofuran at -30℃; for 2h; | A 82% B 12% |
diethyl ethylidenemalonate
A
diethyl (1-methyl-pentyl)malonate
B
ethyl diethyl malonate
Conditions | Yield |
---|---|
In tetrahydrofuran at -30℃; for 2h; | A 82% B 8% |
diethyl ethylidenemalonate
A
diethyl (1-methyl-pentyl)malonate
B
ethyl diethyl malonate
Conditions | Yield |
---|---|
In tetrahydrofuran at -30℃; for 2h; | A 80% B 7% |
n-butyllithium
diethyl ethylidenemalonate
methylaluminum dichloride
A
diethyl isopropylmalonate
B
diethyl (1-methyl-pentyl)malonate
C
ethyl diethyl malonate
Conditions | Yield |
---|---|
Stage #1: n-butyllithium; methylaluminum dichloride In hexane; toluene at -40℃; for 1h; Substitution; Stage #2: With boron trifluoride diethyl etherate In hexane; toluene for 1h; Addition; Stage #3: diethyl ethylidenemalonate In hexane; toluene at -40℃; for 18h; Reduction; Michael addition; | A 7 % Chromat. B 74% C 6 % Chromat. |
diethyl ethylidenemalonate
C3H7ClMn
A
diethyl 2-(3-methylbutan-2-yl)malonate
B
ethyl diethyl malonate
Conditions | Yield |
---|---|
In tetrahydrofuran at -30℃; for 2h; | A 70% B 11% |
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Molecular Structure:
Molecular Formula: C9H16O4
Molecular Weight: 188.2209
IUPAC Name: Diethyl 2-ethylpropanedioate
Synonyms of Propanedioicacid, 2-ethyl-, 1,3-diethyl ester (CAS NO.133-13-1): AI3-19481 ; Diethyl 2-ethylmalonate ; Diethyl ethylmalonate ; EINECS 205-093-3 ; NSC 8706 ; Malonic acid, ethyl-, diethyl ester (8CI) ; Propanedioic acid, ethyl-, diethyl ester
CAS NO: 133-13-1
Classification Code: Pharmaceutical Intermediates ; TheMalonateRamificationProducts ; C8 to C9 ; Carbonyl Compounds ; Esters
Melting point: 0°C
Index of Refraction: 1.425
Molar Refractivity: 47.25 cm3
Molar Volume: 184.4 cm3
Surface Tension: 31.5 dyne/cm
Density: 1.02 g/cm3
Flash Point: 88.3 °C
Enthalpy of Vaporization: 44.8 kJ/mol
Boiling Point: 211.7 °C at 760 mmHg
Vapour Pressure: 0.18 mmHg at 25°C
Propanedioicacid, 2-ethyl-, 1,3-diethyl ester (CAS NO.133-13-1) is used as the medicine raw material and the agricultural chemicals intermediate.
Hazard Codes of Propanedioicacid, 2-ethyl-, 1,3-diethyl ester (CAS NO.133-13-1): Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25-36-26
S24/25: Avoid contact with skin and eyes.
S36: Wear suitable protective clothing.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 2
HS Code: 29171990