methyl chloroacetate
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With magnesium In tetrahydrofuran 1.) 30-35 deg C, 7 h, 2.) overnight, 3.) reflux, 2 h.; | 41% |
With diethyl ether; magnesium; mercury dichloride |
4-chloro-4-chloromethyloxetan-2-one
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In methanol |
Conditions | Yield |
---|---|
Stage #1: methanol; 4-chloroacetoacetyl chloride Industry scale; Stage #2: With sodium hydroxide In water Industry scale; |
acetoacetic acid methyl ester
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With chlorine In tetrachloromethane at 20℃; |
Methyl 4-chloroacetoacetate
orthoformic acid triethyl ester
Conditions | Yield |
---|---|
With acetic anhydride Heating; | 100% |
Methyl 4-chloroacetoacetate
orthoformic acid triethyl ester
methyl 2-(chloroacetyl)-3-ethoxyacrylate
Conditions | Yield |
---|---|
With acetic anhydride for 24h; Heating; | 100% |
Methyl 4-chloroacetoacetate
methyl 4-chloro-3-hydroxybutanoate
Conditions | Yield |
---|---|
With potassium borohydride In ethanol at 0 - 5℃; | 98.6% |
Stage #1: Methyl 4-chloroacetoacetate With sodium tetrahydroborate In methanol at 0 - 20℃; for 2.25h; Stage #2: With hydrogenchloride; water In methanol | 77% |
With sodium tetrahydroborate | |
With sodium tetrahydroborate In methanol at 20℃; | |
With sodium tetrahydroborate In methanol at 20℃; |
ethanol
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
at 80℃; for 16h; Inert atmosphere; | 98% |
methanol
Methyl 4-chloroacetoacetate
(E)-4-chloro-3-methoxy-but-2-enoic acid methyl ester
Conditions | Yield |
---|---|
Stage #1: methanol; Methyl 4-chloroacetoacetate With thionyl chloride at -10 - 20℃; Stage #2: With methanesulfonic acid at 150℃; under 75.006 Torr; | 96.4% |
Stage #1: methanol; Methyl 4-chloroacetoacetate With hydrogenchloride at 20℃; for 15h; Stage #2: With methanesulfonic acid at 125 - 130℃; under 75.006 Torr; | 87% |
With thionyl chloride; methanesulfonic acid 1.) 25 deg C, 3 h, 2.) 125 - 130 deg C, 100 mbar, 2,5 h; Yield given. Multistep reaction; |
Methyl 4-chloroacetoacetate
thiophenol
methyl 3-oxo-4-(phenylthio)butanoate
Conditions | Yield |
---|---|
With sodium In methanol for 0.5h; Ambient temperature; | 96% |
With sodium hydroxide In ethanol; isopropyl alcohol at 100℃; for 0.5h; | 94% |
With triethylamine for 4h; | |
With sodium acetate In ethanol for 1h; Reflux; | 950 mg |
Methyl 4-chloroacetoacetate
N-(p-chlorobenzylidene)-p-toluenesulfonamide
C19H18ClNO5S
Conditions | Yield |
---|---|
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; sodium carbonate; 1,2-bis-(diphenylphosphino)ethane In 1,4-dioxane at 50℃; for 10h; Catalytic behavior; Schlenk technique; Inert atmosphere; | 96% |
Conditions | Yield |
---|---|
In water; acetone | 95% |
Methyl 4-chloroacetoacetate
4-Bromoresorcinol
6-bromo-4-(chloromethyl)-7-hydroxy-2H-chromen-2-one
Conditions | Yield |
---|---|
With methanesulfonic acid at 20℃; for 2h; Pechmann condensation; | 95% |
Isopropenyl acetate
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid | 94% |
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With chloro-trimethyl-silane; triethylamine In hexane; ethyl acetate | 94% |
3,5-dihydroxyphenol
Methyl 4-chloroacetoacetate
4-chloromethyl-5,7-dihydroxy-chromen-2-one
Conditions | Yield |
---|---|
With aluminum oxide; methanesulfonic acid at 20℃; for 0.25h; Pechmann reaction; | 94% |
Methyl 4-chloroacetoacetate
di-isopropyl azodicarboxylate
C13H20N2O7
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In 1,4-dioxane at 50℃; for 10h; Schlenk technique; Inert atmosphere; | 94% |
N-phenyl-maleimide
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 25℃; for 2h; Michael Addition; | 94% |
N-phenylmaleimide
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 2h; Michael Addition; | 94% |
Conditions | Yield |
---|---|
93% |
chloro-trimethyl-silane
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With triethylamine In benzene at 20℃; for 72h; | 93% |
Methyl 4-chloroacetoacetate
2-hydroxyresorcinol
4-chloromethyl-7,8-dihydroxy<1>benzopyran-2(H)-one
Conditions | Yield |
---|---|
With aluminum oxide; methanesulfonic acid at 20℃; for 0.25h; Pechmann reaction; | 93% |
chloro-trimethyl-silane
Methyl 4-chloroacetoacetate
methyl 4-chloro-3-(trimethylsilyloxy)but-2-enoate
Conditions | Yield |
---|---|
Stage #1: Methyl 4-chloroacetoacetate With triethylamine In benzene at 20℃; for 0.5h; Inert atmosphere; Stage #2: chloro-trimethyl-silane In benzene at 20℃; for 72h; Inert atmosphere; | 93% |
Methyl 4-chloroacetoacetate
dimethyl (4-nitrobenzylidene)malonate
C17H17NO9
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); trifuran-2-yl-phosphane; potassium carbonate In 1,4-dioxane at 60℃; for 12h; Michael Addition; Schlenk technique; Inert atmosphere; | 93% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); trifuran-2-yl-phosphane; potassium carbonate In 1,4-dioxane at 60℃; for 12h; Michael Addition; Schlenk technique; Inert atmosphere; | 93% |
methanol
Methyl 4-chloroacetoacetate
4-methoxyacetoacetic acid methylester
Conditions | Yield |
---|---|
Stage #1: methanol With sodium hydride In tetrahydrofuran at 20℃; Stage #2: Methyl 4-chloroacetoacetate In tetrahydrofuran at 20℃; | 93% |
With potassium methanolate; sodium hydride In tetrahydrofuran; mineral oil at 15 - 25℃; for 9h; Concentration; Inert atmosphere; | 74 g |
With potassium methanolate; sodium hydride In tetrahydrofuran; mineral oil at 20 - 25℃; for 9h; Reagent/catalyst; Temperature; Inert atmosphere; | 89 g |
Methyl 4-chloroacetoacetate
benzyl alcohol
4-benzyloxy-3-oxobutyric acid methyl ester
Conditions | Yield |
---|---|
Stage #1: benzyl alcohol With sodium tert-pentoxide In tetrahydrofuran at 20 - 40℃; for 2h; Inert atmosphere; Stage #2: Methyl 4-chloroacetoacetate In tetrahydrofuran at 0 - 20℃; for 2h; Cooling with ice; | 92% |
Stage #1: benzyl alcohol With sodium tert-pentoxide In tetrahydrofuran at 40℃; for 2h; Inert atmosphere; Stage #2: Methyl 4-chloroacetoacetate In tetrahydrofuran at 0 - 20℃; for 2h; | 92% |
With caesium carbonate In toluene at 110℃; for 12h; | 92% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In 1,4-dioxane at 50℃; for 10h; Schlenk technique; Inert atmosphere; | 92% |
Conditions | Yield |
---|---|
With ZnCl2 supported on Fe3O4 (at) SiO2 nanocatalyst In neat (no solvent) at 60℃; for 2h; | 92% |
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide at 70℃; for 0.5h; | 92% |
Methyl 4-chloroacetoacetate
4-methoxyacetoacetic acid methylester
Conditions | Yield |
---|---|
With hydrogenchloride; sodium methylate In water; acetonitrile | 91.7% |
With hydrogenchloride In tetrahydrofuran; methanol; nitrogen; toluene | 107.7 g (74%) |
With hydrogenchloride; sodium methylate; acetic acid In acetonitrile |
Methyl 4-chloroacetoacetate
methyl (S)-4-chloro-3-hydroxybutanoate
Conditions | Yield |
---|---|
With NAD; isopropyl alcohol In aq. phosphate buffer at 30℃; for 4h; pH=7; Reagent/catalyst; Microbiological reaction; Green chemistry; Enzymatic reaction; stereoselective reaction; | 91% |
With NAD; isopropyl alcohol In hexane; water Ambient temperature; PED alcohol dehydrogenase, phosphate buffer pH 7.1; | 76% |
Cunnighamella echinulata CCT 4424 In phosphate buffer at 30℃; pH=7; Reduction; Enzymatic reaction; |
Methyl 4-chloroacetoacetate
Conditions | Yield |
---|---|
With 4-acetamidobenzenesulfonyl azide; tert-butylamine In tetrahydrofuran at 25℃; Inert atmosphere; | 90% |
With 4-acetamidobenzenesulfonyl azide; triethylamine In acetonitrile for 16h; Ambient temperature; | 56% |
Conditions | Yield |
---|---|
With aluminum oxide; methanesulfonic acid at 20℃; for 0.583333h; Pechmann reaction; | 90% |
The Butanoic acid,4-chloro-3-oxo-, methyl ester, with the CAS registry number 32807-28-6, is also known as 4-Chloro-3-oxobutanoic acid methyl ester. It belongs to the product categories of Halogen compounds; Organic acids; C2 to C5; Carbonyl Compounds;Esters; Aliphatics; Intermediates & Fine Chemicals; Pharmaceuticals. Its EINECS number is 251-230-5. This chemical's molecular formula is C5H7ClO3 and molecular weight is 150.56. What's more, its systematic name is methyl 4-chloro-3-oxobutanoate. It is stable at common pressure and temperature, and it should be sealed and stored in a cool and dry place. Moreover, it should be ensured that the workshop is well ventilated or equipped with exhaust devices. It is used as intermediates in organic synthesis.
Physical properties of Butanoic acid,4-chloro-3-oxo-, methyl ester are: (1)ACD/LogP: -0.279; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.28; (4)ACD/LogD (pH 7.4): -0.28; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 16.79; (8)ACD/KOC (pH 7.4): 16.67; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 43.37 Å2; (13)Index of Refraction: 1.431; (14)Molar Refractivity: 31.867 cm3; (15)Molar Volume: 123.056 cm3; (16)Polarizability: 12.633×10-24cm3; (17)Surface Tension: 35.0 dyne/cm; (18)Density: 1.224 g/cm3; (19)Flash Point: 102.778 °C; (20)Enthalpy of Vaporization: 46.559 kJ/mol; (21)Boiling Point: 228.984 °C at 760 mmHg; (22)Vapour Pressure: 0.071 mmHg at 25°C.
Preparation of Butanoic acid,4-chloro-3-oxo-, methyl ester: this chemical can be prepared by chloroacetic acid methyl ester at the temperature of 30-35 °C. This reaction will need reagent magnesium and solvent tetrahydrofuran with the reaction time of 7 hours. The yield is about 41%.
Uses of Butanoic acid,4-chloro-3-oxo-, methyl ester: it can be used to produce Methyl 4-chloro-3-hydroxybutanoate at the ambient temperature. It will need reagents NAD, 2-propanol and solvents H2O, hexane. The yield is about 76%.
When you are using this chemical, please be cautious about it as the following:
It is toxic if swallowed and can cause burns. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, you must seek medical advice immediately (show the label where possible).
You can still convert the following datas into molecular structure:
(1)SMILES: ClCC(=O)CC(=O)OC
(2)Std. InChI: InChI=1S/C5H7ClO3/c1-9-5(8)2-4(7)3-6/h2-3H2,1H3
(3)Std. InChIKey: HFLMYYLFSNEOOT-UHFFFAOYSA-N
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LD50 | intraperitoneal | 91mg/kg (91mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Oyo Yakuri. Pharmacometrics. Vol. 33, Pg. 695, 1987. |
rat | LD50 | intraperitoneal | 77mg/kg (77mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Oyo Yakuri. Pharmacometrics. Vol. 33, Pg. 695, 1987. |
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