As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
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inquiryCompetitive Price High Quality Fast Delivery custom-made Welcome to Henan Tianfu Chemical Co., Ltd. website. Our company engages in Sodium Tripolyphosphate (STPP) and Sodium Hexametabphosphate (SHMP) production; development of noble me
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inquiryDiethyl ketomalonate CAS:609-09-6 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic inter
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inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
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inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
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inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
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inquiryJ&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
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inquirymoderate price & quick delivery Appearance:Clear yellow liquid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:100g/bottle,1kg/bottle,25kg/drum or as per your request Application:Used as Pharmaceutical Interme
CASNumber: 609-09-6 Name: Propanedioicacid,2-oxo-,1,3-diethylester SuperlistName: Diethylketomalona…Appearance:White solid Storage:tight place Package:50kg/ barrel Application:drug intermediate Trans
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inquiryDiethyl ketomalonate Chemical Properties Melting point -70°C Boiling point 208-210 °C (lit.) density 1.142 g/mL at 25 °C (lit.) refractive index n20/D 1.415 Fp >230 °F form liquid color green-yellow Spec
Cas:609-09-6
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inquiryQ1: Are you a manufacturer Answer: Yes, we are factory founded on 2012.Q2: How to contact with us Click "contact supplier" And then send us message the product you interest in, you will get reply within 12 hours.Q3:Which kind of payment terms do you
Conditions | Yield |
---|---|
With 3,3-dimethyldioxirane In acetone for 29h; Ambient temperature; | 100% |
With tert-butylhypochlorite In formic acid | |
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; 1,1'-sulfinylbisbenzene; lanthanum(lll) triflate In 1,4-dioxane at 120℃; for 16h; Glovebox; Sealed tube; | 50 %Spectr. |
diethyl N,N-dimethylaminomethylenemalonate
Diethyl ketomalonate
Conditions | Yield |
---|---|
With ozone | 94% |
Conditions | Yield |
---|---|
With hydrogenchloride; sodium chlorate; dihydrogen peroxide; sodium hydroxide In water at 10 - 35℃; pH=5 - 10; | 89% |
With chlorine dioxide; sodium hydroxide In water at 10 - 18℃; for 5h; pH=10; | 89% |
Stage #1: diethyl malonate With acetic acid In water at 70 - 80℃; for 0.5h; Stage #2: With sodium chlorite In water at 0 - 80℃; | 56% |
Conditions | Yield |
---|---|
With aluminum oxide; tetrabutylammomium bromide; oxygen; cyclohexene In acetonitrile Hg cathode, Pt anode, -1.0 V vs SCE; | 83% |
Conditions | Yield |
---|---|
With formaldehyd; ozone; Pd-on-C In methanol | 82% |
Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With silver nitrate In ethanol; acetonitrile for 22h; Heating; | 77% |
With Amberlyst A-26; nitrate form In benzene for 7h; Heating; | 70% |
With pyridine N-oxide In acetone; acetonitrile; Petroleum ether | |
Multi-step reaction with 2 steps 1: alcohol / 40 - 50 °C 2: bromine / 110 °C / Destillation des Reaktionsprodukts unter verminderten Druck View Scheme |
Conditions | Yield |
---|---|
With hydrogenchloride; sodium chlorate; dihydrogen peroxide; sodium hydroxide In water at 10 - 35℃; pH=5 - 10; | A n/a B 76% |
With chlorine dioxide; sodium hydroxide In water at 10 - 18℃; for 5h; | A n/a B 76% |
5--4,5-dihydro-2,5-dimethyl-4-phenyl-3-furancarbonsaeure-ethylester
A
2,5-Dimethyl-4-phenyl-3-pyrrolcarbonsaeure-ethylester
B
Diethyl ketomalonate
Conditions | Yield |
---|---|
With hydrogenchloride In methanol; water Heating; | A 51% B n/a |
5-Methoxy-[1,2,4]trioxolane-3,3-dicarboxylic acid diethyl ester
Diethyl ketomalonate
Conditions | Yield |
---|---|
With phosphorus trichloride for 8h; Ambient temperature; | 44% |
With phosphorus trichloride for 8h; Ambient temperature; | 44% |
2-ethoxy-2-oxoacetic anhydride
Diethyl ketomalonate
Conditions | Yield |
---|---|
at 240℃; |
ethanol
diethyl dibromomalonate
potassium acetate
Diethyl ketomalonate
Conditions | Yield |
---|---|
With phosphorus pentoxide Destillieren; |
diethyl 2,3-dioxosuccinate
Diethyl ketomalonate
Conditions | Yield |
---|---|
With bromine at 110℃; Destillation des Reaktionsprodukts unter verminderten Druck; |
bromo-nitro-malonic acid diethyl ester
Diethyl ketomalonate
diethyl malonate
A
dihydroxymalonic acid diethyl ester
B
Diethyl ketomalonate
Conditions | Yield |
---|---|
With nitrogen oxides | |
With ammonium cerium (IV) nitrate In acetonitrile at 0 - 20℃; for 4h; Overall yield = 69 %; |
2-hydroxy-malonic acid diethyl ester
Diethyl ketomalonate
Conditions | Yield |
---|---|
With bromine |
Conditions | Yield |
---|---|
With 2-morpholin-4-yldisulfanyl-benzothiazole | |
Multi-step reaction with 2 steps 1: ethanol / 1.) 50 deg C, 2 h, 2.) reflux, overnight 2: tetrabutylammonium bromide View Scheme |
Conditions | Yield |
---|---|
With ozone; triphenylphosphine 1.) CH2Cl2, -78 deg C, 2 h; Yield given. Multistep reaction; |
chloroformic acid ethyl ester
ethyl 2-cyanoacetate
Azobenzene
A
diphenyl hydrazine
B
Diethyl ketomalonate
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; oxygen; cyclohexene 1.) acetonitrile, -1.3 V vs. SCE 2.) acetonitrile, -1.0 V vs. SCE; Yield given. Multistep reaction; |
diethyl α-acetoxy-α-bromomalonate
Diethyl ketomalonate
Conditions | Yield |
---|---|
With tetrabutylammomium bromide Yield given; |
Conditions | Yield |
---|---|
at 120 - 130℃; |
selenium(IV) oxide
diethyl malonate
A
carbon dioxide
B
ethyl acetate
C
Diethyl ketomalonate
Conditions | Yield |
---|---|
bei Siedetemperatur; |
tetrachloromethane
selenium(IV) oxide
diethyl malonate
A
oxomalonic acid monoethyl ester
B
oxalic acid diethyl ester
C
Diethyl ketomalonate
Conditions | Yield |
---|---|
Produkt 5: CO2; |
Diethyl ketomalonate
Conditions | Yield |
---|---|
With dinitrogen pentoxide at 0℃; |
Conditions | Yield |
---|---|
With hydrogenchloride |
1,2,5-trimethyl-1H-pyrrole
Diethyl ketomalonate
2-Hydroxy-2-(1,2,5-trimethyl-1H-pyrrol-3-yl)-malonic acid diethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20℃; under 750.06 Torr; for 24h; | 100% |
1,4-dimethoxybezene
Diethyl ketomalonate
diethyl (2,5-dimethoxyphenyl)tartronate
Conditions | Yield |
---|---|
With tin(IV) chloride In dichloromethane 1.) 0 deg C, 10 min, 2.) 20 deg C, 19 h; | 100% |
1-methoxy-3-trimethylsilyl-1,3-butadiene
Diethyl ketomalonate
6-Methoxy-4-trimethylsilanyl-3,6-dihydro-pyran-2,2-dicarboxylic acid diethyl ester
Conditions | Yield |
---|---|
In benzene at 50℃; for 10h; | 100% |
(3R,5R,7R)-1-(buta-1,3-dien-2-yl)adamantane
Diethyl ketomalonate
4-Adamantan-1-yl-3,6-dihydro-pyran-2,2-dicarboxylic acid diethyl ester
Conditions | Yield |
---|---|
In toluene for 39h; Heating; | 100% |
2-(2,2,2-trifluoroethoxy)-4-oxo-5,6-benzo-1,3,2-dioxaphosphorinane
Diethyl ketomalonate
Conditions | Yield |
---|---|
In dichloromethane | 100% |
2-(2,2,3,3-tetrafluoropropoxy)benzo[e][1,3,2]dioxaphosphinin-4-one
Diethyl ketomalonate
Conditions | Yield |
---|---|
In dichloromethane | 100% |
Methyl-5-hydroxy-2,2-diphenyl-4H-1,3-dithiin-6-carboxylat
Diethyl ketomalonate
Diethyl-2-hydroxy-2-(6-methoxycarbonyl-5-oxo-2,2-diphenyl-1,3-dithian-4-yl)malonat
Conditions | Yield |
---|---|
With 4-methyl-morpholine In benzene for 12h; | 100% |
triphenyl(t-butoxycarbonylimino)phosphorane
Diethyl ketomalonate
2-(N-tert-butoxycarbonylimino)malonic acid diethyl ester
Conditions | Yield |
---|---|
In tetrahydrofuran for 24h; aza-Wittig reaction; Heating; | 100% |
In tetrahydrofuran at 80℃; for 12h; | 89% |
In tetrahydrofuran for 18h; Heating; | |
In tetrahydrofuran for 18h; Reflux; |
4,4-difluoro-3,5,8-trimethyl-4-bora-3a,4a-diaza-s-indacene
Diethyl ketomalonate
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene at 60℃; | 100% |
4,4-difluoro-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indecene
Diethyl ketomalonate
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene at 60℃; | 100% |
toluene
Diethyl ketomalonate
diethyl 2-hydroxy-2-(4-methylphenyl)propane-1,3-dioate
Conditions | Yield |
---|---|
With tin(IV) chloride at 20℃; for 2h; | 99% |
With tin(IV) chloride |
3,7-dimethyl-6-octenylamine
Diethyl ketomalonate
Diethyl (3',7'-Dimethyl-6-octenylimino)malonate
Conditions | Yield |
---|---|
In benzene Heating; | 99% |
2-(n-pentyl)-1-ethoxy-1,3-butadiene
Diethyl ketomalonate
Conditions | Yield |
---|---|
at 50℃; for 6h; | 99% |
1-methoxy-1,3-butadiene
Diethyl ketomalonate
6-Methoxy-3,6-dihydro-pyran-2,2-dicarboxylic acid diethyl ester
Conditions | Yield |
---|---|
99% |
(S)-3-acetoxy-1-triphenylphosphoranylidene-2-butanone
Diethyl ketomalonate
Conditions | Yield |
---|---|
In chloroform for 48h; Ambient temperature; | 99% |
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In 1,2-dichloro-ethane at 60℃; for 12h; stereoselective reaction; | 99% |
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In 1,2-dichloro-ethane at 60℃; for 12h; | 99% |
2-(3-methylphenyl)-1-cyclopropylethan-1-one
Diethyl ketomalonate
C17H18O5
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In 1,2-dichloro-ethane at 60℃; for 12h; | 99% |
Diethyl ketomalonate
Conditions | Yield |
---|---|
Stage #1: 1-benzyl-3-(1-cyanovinyl)-2-oxoindolin-3-yl tert-butyl carbonate; Diethyl ketomalonate In ethyl acetate at -40℃; for 0.0833333h; Stage #2: With C29H28N2O In ethyl acetate at -40℃; enantioselective reaction; | 99% |
Conditions | Yield |
---|---|
In acetonitrile at 60℃; for 18h; | 99% |
1-methylindole
Diethyl ketomalonate
diethyl α-hydroxy-α-(1-methylindol-3-yl)-malonate
Conditions | Yield |
---|---|
In toluene for 3h; Heating; | 98% |
In toluene at 100℃; for 3h; Heating; | 95% |
1-ethoxy-2-methyl-1,3-butadien
Diethyl ketomalonate
Conditions | Yield |
---|---|
at 50℃; for 6h; | 98% |
Acetic acid (3E,5Z)-6-methoxy-hexa-3,5-dienyl ester
Diethyl ketomalonate
(3S,6R)-3-(2-Acetoxy-ethyl)-6-methoxy-3,6-dihydro-pyran-2,2-dicarboxylic acid diethyl ester
Conditions | Yield |
---|---|
In benzene at 60℃; under 6375510 Torr; for 48h; | 98% |
8-oxo-7-azabicyclo<4.2.0>oct-2-ene
Diethyl ketomalonate
2-Hydroxy-2-((1S,6R)-8-oxo-7-aza-bicyclo[4.2.0]oct-3-en-7-yl)-malonic acid diethyl ester
Conditions | Yield |
---|---|
for 24h; Ambient temperature; | 98% |
(3-methoxycarbonylpropionyl)methylenetriphenylphosphorane
Diethyl ketomalonate
2-Ethoxycarbonyl-4-oxo-hept-2-enedioic acid 1-ethyl ester 7-methyl ester
Conditions | Yield |
---|---|
In chloroform for 48h; Ambient temperature; | 98% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In toluene at 85℃; for 2h; Pictet-Spegler condensation; | 98% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In toluene at 85℃; for 2h; Pictet-Spegler condensation; | 98% |
Diethyl ketomalonate
Conditions | Yield |
---|---|
With trifluoroacetic acid In toluene at 85℃; for 4h; Pictet-Spegler condensation; | 98% |
α-tert-butoxycarbonyl-α-phenyl-γ-methylidene-δ-valerolactone
Diethyl ketomalonate
3-tert-butyl 2,2-diethyl 5-methylene-3-phenyl-3,4-dihydro-2H-pyran-2,2,3(3H,4H)-tricarboxylatecarboxylate
Conditions | Yield |
---|---|
With allyl(cyclopentadiene)palladium(II); C38H30NO2P In tetrahydrofuran at 40℃; for 3h; diastereoselective reaction; | 98% |
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