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
Cas:108-56-5
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inquiryOur main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
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inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
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inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
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inquiry1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
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inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese
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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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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
superior quality Appearance:colourless liquid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Oxaloacetic acid diethyl imidazole b niacin is herbi
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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
Cas:108-56-5
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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
Zhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
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inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
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inquiryWhy Choose Us 1. Quality Price We are the manufacturer, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. Packing Products could be packaged according to customer&#
Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
Q1: 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
Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
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inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou
Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as
Diethyl oxalacetateAppearance:detailed see specifications Storage:Keep away of light, cool place Package:25kg/drum;200kg/drum Application:It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and D
We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Pharm intermediate
Supply top quality products with a reasonable price Application:api
Diethyl oxalacetate cas 108-56-5Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta
sodium 1,4-diethoxy-1,4-dioxobut-2-en-2-olate
diethyl oxaloacetate
Conditions | Yield |
---|---|
With hydrogenchloride In diethyl ether; water | 83% |
Conditions | Yield |
---|---|
Stage #1: oxalic acid diethyl ester With sodium ethanolate In benzene at 0℃; Inert atmosphere; Stage #2: ethyl acetate In benzene at 0 - 20℃; for 14.5h; Inert atmosphere; | 74% |
With diethyl ether; sodium ethanolate Behandeln in Wasser mit verduennter Schwefelsaeure in Gegenwart von Aether; | |
With diethyl ether; sodium Behandeln in Wasser mit verduennter Schwefelsaeure in Gegenwart von Aether; |
Conditions | Yield |
---|---|
With water; platinum(II) chloride In methanol at 60℃; | 42% |
Conditions | Yield |
---|---|
With chloroform at 65℃; Behandeln des Reaktionsprodukts mit Aethanol.; |
Acetoxymaleinsaeureanhydrid
ethanol
A
ethyl acetate
B
diethyl oxaloacetate
Conditions | Yield |
---|---|
bei der Ozonspaltung; |
diethyl ether
sodium ethanolate
ethyl acetate
oxalic acid diethyl ester
diethyl oxaloacetate
ethanol
sodium ethanolate
ethyl acetate
oxalic acid diethyl ester
diethyl oxaloacetate
Ketene
chloroform
Ethyl oxalyl chloride
A
4,6-dioxo-5,6-dihydro-4H-pyran-2-carboxylic acid ethyl ester
B
oxalic acid diethyl ester
C
diethyl oxaloacetate
Conditions | Yield |
---|---|
anschliessenden Erwaermen mit Aethanol; |
Conditions | Yield |
---|---|
With sulfur dioxide at 65℃; Behandeln des Reaktionsprodukts mit Aethanol.; |
sodium ethanolate
oxalic acid diethyl ester
3-ethoxycarbonyl-3-penten-2-one
A
hydroxy-terephthalic acid diethyl ester
B
diethyl oxaloacetate
oxalic acid diethyl ester
3-ethoxycarbonyl-3-penten-2-one
A
hydroxy-terephthalic acid diethyl ester
B
diethyl oxaloacetate
Conditions | Yield |
---|---|
With ethanol; sodium ethanolate |
Dichlormethylenbrenztraubensaeureaethylester; Dichlorvinylglyoxylsaeureaethylester
sodium ethanolate
diethyl oxaloacetate
Conditions | Yield |
---|---|
In ethanol |
2-[(E)-1-Methyl-2-phenyl-ethylimino]-succinic acid diethyl ester
A
dexamfetamine
B
l-amphetamine
C
diethyl oxaloacetate
Conditions | Yield |
---|---|
With sulfuric acid In water for 2h; Ambient temperature; Yield given; |
2-[(E)-1-Phenyl-ethylimino]-succinic acid diethyl ester
A
(S)-1-phenyl-ethylamine
B
(R)-1-phenyl-ethyl-amine
C
diethyl oxaloacetate
Conditions | Yield |
---|---|
With sulfuric acid In water for 2h; Ambient temperature; Yield given; |
diethyl oxaloacetate
Conditions | Yield |
---|---|
Ozonolyse; |
Conditions | Yield |
---|---|
anschliessenden Behandeln mit Aethanol; |
diethyl ether
ethyl acetate
oxalic acid diethyl ester
diethyl oxaloacetate
ethanol
sodium ethanolate
ethyl acetate
oxalic acid diethyl ester
A
diethyl oxaloacetate
diethyl ether
ethyl acetate
oxalic acid diethyl ester
A
diethyl oxaloacetate
Ketene
oxalyl dichloride
A
3,4-dioxo-hexanedicarboxylic acid diethyl ester
B
diethyl oxaloacetate
Conditions | Yield |
---|---|
Behandeln des Reaktionsprodukts mit Aethanol; |
ethanol
imino-succinic acid diethyl ester
copper diacetate
acetic acid
A
ammonia
B
diethyl oxaloacetate
acetoxy-hydroxy-fumaric acid diethyl ester
A
oxalic acid
B
diethyl oxaloacetate
ozone
ethyl acetate
A
glyoxylic acid ethyl ester
B
diethyl oxaloacetate
Conditions | Yield |
---|---|
man erhaelt der Oxalessigester infolge des α-Cyan-aconitsaeure-triaethylester-Gehalts; |
L-aspartic acid diethyl ester
A
diethyl oxaloacetate
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: benzene / 72 h / Heating 2: H2 / 5percent palladium on charcoal / ethanol / 16 h / Ambient temperature 3: tert-butyl hypochlorite / diethyl ether / 0.5 h / 0 °C 4: sodium ethoxide / ethanol / 1 h / 40 °C 5: 5percent sulfuric acid / H2O / 2 h / Ambient temperature View Scheme | |
Multi-step reaction with 5 steps 1: benzene / 48 h / Heating 2: H2 / 5percent palladium on charcoal / ethanol / 16 h / Ambient temperature 3: tert-butyl hypochlorite / diethyl ether / 0.5 h / 0 °C 4: sodium ethoxide / ethanol / 1 h / 40 °C 5: 5percent sulfuric acid / H2O / 2 h / Ambient temperature View Scheme |
C16H22ClNO4
A
diethyl oxaloacetate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium ethoxide / ethanol / 1 h / 40 °C 2: 5percent sulfuric acid / H2O / 2 h / Ambient temperature View Scheme |
aminopyridin-2-ylacetic acid ethyl ester
diethyl oxaloacetate
Conditions | Yield |
---|---|
for 7h; Heating; | 8% |
Conditions | Yield |
---|---|
In ethanol for 16h; Heating; | 10% |
9-formyl-8-hydroxyjulolidine
diethyl oxaloacetate
Oxo-(10-oxo-2,3,5,6-tetrahydro-1H,4H,10H-11-oxa-3a-aza-benzo[de]anthracen-9-yl)-acetic acid ethyl ester
Conditions | Yield |
---|---|
With piperidine In acetonitrile for 120h; Heating; | 12% |
L-threonine methyl ester
diethyl oxaloacetate
diethyl 2-N-(2-hydroxy-1-methoxycarbonylpropylamino)but-2-enedioate
Conditions | Yield |
---|---|
With sodium sulfate In dichloromethane for 65h; Ambient temperature; | 13% |
diethyl oxaloacetate
Conditions | Yield |
---|---|
With acetic acid In benzene for 64h; Heating; | 16% |
5,5-dimethyl-6-hydrazino-4,5-dihydro-2H-pyridazin-3-one
diethyl oxaloacetate
Conditions | Yield |
---|---|
In ethanol at 20℃; for 120h; | 17% |
[2,4,5,6-2H4]3-chloroaniline
diethyl oxaloacetate
Conditions | Yield |
---|---|
In acetic acid at 45℃; | 17% |
Conditions | Yield |
---|---|
With acetic acid In benzene for 50h; Heating; | 19% |
chloroacetone
diethyl oxaloacetate
ethyl 3-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-4-carboxylate
Conditions | Yield |
---|---|
Stage #1: chloroacetone; diethyl oxaloacetate With ammonia In tetrahydrofuran for 0.666667h; Stage #2: With aluminum (III) chloride In tetrahydrofuran at 23℃; for 96h; | 19% |
Dimethylaminoguanidin*HBr
diethyl oxaloacetate
3-Dimethylamino-5-oxo-dihydro-1,2,4-triazin-6-yl-essigsaeureethylester
Conditions | Yield |
---|---|
With sodium acetate In ethanol for 12h; Heating; | 20% |
diethyl oxaloacetate
Conditions | Yield |
---|---|
With acetic acid In benzene for 40h; Heating; | 20% |
diethyl oxaloacetate
5-amino-1-methyl-2-phenylindole
Conditions | Yield |
---|---|
With acetic acid In benzene for 61h; Heating; | 21% |
6-Chloro-pyridin-3-ylamine
diethyl oxaloacetate
(6-chloro-pyridin-3-ylamino)-butenedioic acid diethyl ester
Conditions | Yield |
---|---|
at 90℃; for 7h; | 21% |
pyridine-2-carbaldehyde
diethyl oxaloacetate
diethyl 2,5-di(pyridin-2-yl)-1H-pyrrole-3,4-dicarboxylate
Conditions | Yield |
---|---|
With ammonium acetate In ethanol Reflux; | 22% |
diethyl oxaloacetate
Conditions | Yield |
---|---|
With acetic acid In benzene for 33h; Heating; | 23% |
4-Hydroxy-2-quinolone
diethyl oxaloacetate
2,5-Dioxo-5,6-dihydro-2H-pyrano<3,2-c>quinolinyl-4-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With ammonium acetate In nitrobenzene at 220℃; for 0.5h; | 25% |
diethyl oxaloacetate
Conditions | Yield |
---|---|
In toluene at 45℃; for 6h; | 26% |
p-toluidine
cyclohexanecarbaldehyde
diethyl oxaloacetate
ethyl 2-cyclohexyl-4-hydroxy-5-oxo-1-(4-methylphenyl)-2,5-dihydro-1H-pyrrole-3-carboxylate
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; | 26% |
2,3-dimethyl-5-amino-6-methoxyindole
diethyl oxaloacetate
Conditions | Yield |
---|---|
With acetic acid In benzene for 29h; Heating; | 27% |
2,3-dimethyl-4-aminoindole
diethyl oxaloacetate
Conditions | Yield |
---|---|
With acetic acid In benzene for 44h; Heating; | 27% |
4-nitrobenzaldehdye
aniline
diethyl oxaloacetate
ethyl 4‑hydroxy‑2‑(4‑nitrophenyl)‑5‑oxo‑1‑phenyl‑2,5‑dihydro‑1H‑pyrrole‑3‑carboxylate
Conditions | Yield |
---|---|
In methanol; ethanol for 24h; Ambient temperature; | 28% |
benzaldehyde
p-toluidine
diethyl oxaloacetate
ethyl 4-hydroxy-5-oxo-2-phenyl-1-(p-tolyl)-2,5-dihydro-1H-pyrrole-3-carboxylate
Conditions | Yield |
---|---|
In ethanol at 20℃; for 24h; | 28% |
benzaldehyde
4-nitro-aniline
diethyl oxaloacetate
ethyl 4-hydroxy-1-(4-nitrophenyl)-5-oxo-2-phenyl-2,5-dihydro-1H-pyrrole-3-carboxylate
Conditions | Yield |
---|---|
In methanol; ethanol for 240h; Ambient temperature; | 30% |
benzaldehyde
4-bromo-aniline
diethyl oxaloacetate
ethyl 1-(4-bromophenyl)-2,5-dihydro-4-hydroxy-5-oxo-2-phenyl-1H-pyrrole-3-carboxylate
Conditions | Yield |
---|---|
In ethanol at 20℃; for 24h; | 30% |
4-chlorobenzylidenemalonodinitrile
diethyl oxaloacetate
6-Amino-4-(4-chloro-phenyl)-5-cyano-4H-pyran-2,3-dicarboxylic acid diethyl ester
Conditions | Yield |
---|---|
With morpholine In ethanol for 0.5h; Ambient temperature; | 30% |
4-methoxy-benzaldehyde
aniline
diethyl oxaloacetate
ethyl 4‑hydroxy‑2‑(4‑methoxyphenyl)‑5‑oxo‑1‑phenyl‑2,5‑dihydro‑1H‑pyrrole‑3‑carboxylate
Conditions | Yield |
---|---|
In methanol; ethanol for 72h; Ambient temperature; | 33% |
2-methyl-4-nitro-3-isoxazolin-5(2H)-one
diethyl oxaloacetate
Conditions | Yield |
---|---|
Stage #1: diethyl oxaloacetate With sodium In ethanol Stage #2: 2-methyl-4-nitro-3-isoxazolin-5(2H)-one In pyridine at 0 - 20℃; for 5h; Stage #3: With ammonium chloride In ethanol at 80℃; for 10h; Further stages.; | 33% |
Conditions | Yield |
---|---|
Ambient temperature; | A 33.1% B 5.9% C 32.9% D 20.5% |
5-amino-2,3-dimethylindole
diethyl oxaloacetate
Conditions | Yield |
---|---|
With acetic acid In benzene for 30h; Heating; | 34% |
diethyl oxaloacetate
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide boiling; | 35% |
In N,N-dimethyl-formamide boiling; | 35% |
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