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CAS No.: | 108-59-8 |
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Name: | Dimethyl malonate |
Article Data: | 112 |
Cas Database | |
Molecular Structure: | |
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Formula: | C5H8O4 |
Molecular Weight: | 132.116 |
Synonyms: | Malonicacid, dimethyl ester (6CI,8CI);Propanedioic acid, dimethyl ester (9CI);Dimethyl 1,3-propanedioate;Dimethyl propanedioate;Methylmalonate;NSC 620046;Dimethyl Malonate (DMM);Dimethyl malonate; |
EINECS: | 203-597-8 |
Density: | 1.156 g/cm3 |
Melting Point: | -62 °C(lit.) |
Boiling Point: | 177.1 °C at 760 mmHg |
Flash Point: | 90 °C |
Solubility: | negligible |
Appearance: | liquid |
Hazard Symbols: |
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Risk Codes: | 36/37/38 |
Safety: | 26-36 |
PSA: | 52.60000 |
LogP: | -0.27750 |
Conditions | Yield |
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With boron trifluoride at 65℃; for 0.333333h; | 100% |
zirconium(IV) oxide; molybdenum at 84.85℃; for 6h; Esterification; | 95% |
iodine for 15h; Heating; | 94% |
Conditions | Yield |
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With sulfuric acid at 80 - 85℃; for 2h; Neat (no solvent); | 99.8% |
Malonic acid monomethyl ester
methyl chloroformate
A
malonic acid dimethyl ester
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 4℃; for 0.5h; | A 95% B n/a |
Malonic acid monomethyl ester
malonic acid dimethyl ester
Conditions | Yield |
---|---|
95% |
Conditions | Yield |
---|---|
With sodium methylate In methanol | 91% |
With sodium hydroxide In methanol | 87% |
Conditions | Yield |
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With sodium methylate; malonic acid dimethyl ester In methanol for 8h; Ambient temperature; | A 90% B 84% |
Conditions | Yield |
---|---|
With potassium methanolate In methanol; Co2 (CO)8 | 90% |
Conditions | Yield |
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With carbon monoxide In methanol Carbonylation at 50 atm.; | A 77% B 7% |
Conditions | Yield |
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In methanol for 8h; Heating; | A 75% B 73% |
methanol
dichloromethane
carbon monoxide
A
Dimethoxymethane
B
acetic acid methyl ester
C
methyl methoxyacetate
D
malonic acid dimethyl ester
Conditions | Yield |
---|---|
With Methyl formate; sodium methylate; Co2(CO)6{P(C4H9-n)3}2 at 80℃; under 11250.9 Torr; for 15h; electrolysis; | A 8% B n/a C 3% D 74.5% |
With Methyl formate; sodium methylate; Co2(CO)6{P(C4H9-n)3}2 at 80℃; under 11250.9 Torr; for 15h; Product distribution; Mechanism; electrolysis, var. of catalyst, its reduction method, ratio; | A 8% B n/a C 3% D 74.5% |
With sodium hydroxide; carbon-doped cobalt at 80℃; under 23560 Torr; for 1h; | A 1.2 % Chromat. B 7.5 % Chromat. C 1.9 % Chromat. D 28.8 % Chromat. |
Dimethyl malonate, with the CAS NO.108-59-8, is a diester derivative of malonic acid. It is a common reagent for organic synthesis. It is used in the malonic ester synthesis. It is also called Dimethyl ester of malonic acid; Dimethyl propanedioate; dimethyl1,3-propanedioate; dimethylpropanedioate; MALONIC ACID,BIS-METHYL ESTER; MALONIC ACID DIMETHYL ESTER; METHYL MALONATE. Dimethyl malonate should be stored in a cool, dry place. Keep container closed when not in use.
Physical properties about Dimethyl malonate are: (1)ACD/LogP: -0.36; (2)ACD/LogD (pH 5.5): -0.36; (3)ACD/LogD (pH 7.4): -0.36; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 15.19; (7)ACD/KOC (pH 7.4): 15.18; (8)#H bond acceptors: 4; (9)#Freely Rotating Bonds: 4; (10)Index of Refraction: 1.402; (11)Molar Refractivity: 28.763 cm3; (12)Molar Volume: 118.034 cm3; (13)Polarizability: 11.403 10-24cm3; (14)Surface Tension: 31.9130001068115 dyne/cm; (15)Density: 1.119 g/cm3; (16)Flash Point: 90 °C; (17)Enthalpy of Vaporization: 41.338 kJ/mol; (18)Boiling Point: 177.071 °C at 760 mmHg; (19)Vapour Pressure: 1.05900001525879 mmHg at 25°C
You can still convert the following datas into molecular structure
(1)InChI=1S/C5H8O4/c1-8-4(6)3-5(7)9-2/h3H2,1-2H3;
(2)InChIKey=BEPAFCGSDWSTEL-UHFFFAOYSA-N;
(3)SmilesC(C(OC)=O)C(OC)=O;
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rabbit | LD50 | skin | > 5gm/kg (5000mg/kg) | Food and Cosmetics Toxicology. Vol. 17, Pg. 363, 1979. | |
rat | LD50 | oral | 5331mg/kg (5331mg/kg) | Food and Cosmetics Toxicology. Vol. 17, Pg. 363, 1979. |