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:498-23-7
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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
Cas:498-23-7
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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
Cas:498-23-7
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
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
Cas:498-23-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryCitraconic acid CAS:498-23-7 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 intermediat
Cas:498-23-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:498-23-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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
Cas:498-23-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
J&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
Cas:498-23-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
Cas:498-23-7
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryOur company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung, LG, Merck, Thermo Fisher Scientific and so o
Cas:498-23-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryZhenyu 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
Cas:498-23-7
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
1.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
Cas:498-23-7
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
high 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
R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
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
Cas:498-23-7
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
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
Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
Cas:498-23-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySupply top quality products with a reasonable price Application:api
Citraconic acid cas 498-23-7Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:20mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any por
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:any port in China
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Our mission is to provide high-quality and innovative products to our customers. By offering a broad range of products, custom synthesis and personalized services, Bide can help scientists speeding up their research in the chemical and pharmaceutical
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:498-23-7
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With lithium hydroxide In tetrahydrofuran at 20℃; for 8h; Inert atmosphere; | 84% |
2-methylenesuccinic acid
A
poly(methacrylic acid)
B
citraconic acid
C
Mesaconic acid
Conditions | Yield |
---|---|
With 5% Pt/Al2O3; sodium hydroxide In water at 250℃; for 1h; Reagent/catalyst; Temperature; Inert atmosphere; | A 68% B n/a C n/a |
With sodium hydroxide In water at 180℃; under 112511 Torr; for 0.241667h; | A 27.26 %Spectr. B 36.48 %Spectr. C 16.23 %Spectr. |
With sodium hydroxide at 280℃; for 0.0583333h; | A 57.08 %Chromat. B 5.91 %Chromat. C 5.72 %Chromat. |
With sodium hydroxide at 250℃; for 0.25h; Reagent/catalyst; |
citric acid
A
poly(methacrylic acid)
B
citraconic acid
C
Mesaconic acid
D
2-methylenesuccinic acid
Conditions | Yield |
---|---|
With 4-methoxy-phenol; triphenylphosphine In water at 225℃; under 20686.5 Torr; for 1.5h; Temperature; Glovebox; Inert atmosphere; | A 24.1% B n/a C n/a D n/a |
With sodium hydroxide at 250℃; for 0.25h; Reagent/catalyst; |
LACTIC ACID
citraconic acid
Conditions | Yield |
---|---|
at 250 - 260℃; |
Conditions | Yield |
---|---|
With acetyl chloride | |
Irradiation.UV-Licht; | |
at 250℃; |
Conditions | Yield |
---|---|
at 250 - 260℃; |
Conditions | Yield |
---|---|
Citraconsaeureanhydrid entsteht bei der Destillation; | |
Multi-step reaction with 2 steps 1: water / 180 - 200 °C 2: 250 °C View Scheme | |
With sodium hydroxide In water at 190℃; under 112511 Torr; for 0.0666667h; Temperature; | 25.32 %Spectr. |
Conditions | Yield |
---|---|
With water Equilibrium constant; pH = 0.3; | |
With water Kinetik der Bildung; | |
With water |
Conditions | Yield |
---|---|
Citraconsaeureanhydrid entsteht bei der Destillation; |
Conditions | Yield |
---|---|
bei der Destillation; auch ihr Anhydrid entsteht; unter intermediaerer Bildung von Itaconsaeureanhydrid; | |
With hydrogen iodide | |
man destilliert und laesst auf das gebildete Citraconsaeureanhydrid Wasser in der Kaelte einwirken; | |
Thermolysis.und Behandlung des Anhydrids mit Wasser; |
Conditions | Yield |
---|---|
With hydrogen iodide |
Conditions | Yield |
---|---|
at 170 - 280℃; unter vermindertem Druck; | |
With water at 280 - 300℃; under 30 - 40 Torr; |
3-methyl-2,4-hexadienedioic acid
A
citraconic acid
B
2-methylbutanedioic acid
C
2-hydroxy-2-methylbutane-1,4-dioic acid
D
2-hydroxy-2-methylpropanedioic acid
Conditions | Yield |
---|---|
With sodium hydroxide; dihydrogen peroxide at 90℃; for 4h; Product distribution; var. conc. of H2O2 and NaOH, var. time; |
Conditions | Yield |
---|---|
With dipotassium hydrogenphosphate In chloroform; water Mechanism; pH 0.3; pH 10.0; |
Conditions | Yield |
---|---|
With lithium hydroxide In tetrahydrofuran at 20℃; for 8h; Inert atmosphere; | 84% |
2-methylenesuccinic acid
A
poly(methacrylic acid)
B
citraconic acid
C
Mesaconic acid
Conditions | Yield |
---|---|
With 5% Pt/Al2O3; sodium hydroxide In water at 250℃; for 1h; Reagent/catalyst; Temperature; Inert atmosphere; | A 68% B n/a C n/a |
With sodium hydroxide In water at 180℃; under 112511 Torr; for 0.241667h; | A 27.26 %Spectr. B 36.48 %Spectr. C 16.23 %Spectr. |
With sodium hydroxide at 280℃; for 0.0583333h; | A 57.08 %Chromat. B 5.91 %Chromat. C 5.72 %Chromat. |
With sodium hydroxide at 250℃; for 0.25h; Reagent/catalyst; |
citric acid
A
poly(methacrylic acid)
B
citraconic acid
C
Mesaconic acid
D
2-methylenesuccinic acid
Conditions | Yield |
---|---|
With 4-methoxy-phenol; triphenylphosphine In water at 225℃; under 20686.5 Torr; for 1.5h; Temperature; Glovebox; Inert atmosphere; | A 24.1% B n/a C n/a D n/a |
With sodium hydroxide at 250℃; for 0.25h; Reagent/catalyst; |
LACTIC ACID
citraconic acid
Conditions | Yield |
---|---|
at 250 - 260℃; |
Conditions | Yield |
---|---|
With acetyl chloride | |
Irradiation.UV-Licht; | |
at 250℃; |
Conditions | Yield |
---|---|
at 250 - 260℃; |
Conditions | Yield |
---|---|
Citraconsaeureanhydrid entsteht bei der Destillation; | |
Multi-step reaction with 2 steps 1: water / 180 - 200 °C 2: 250 °C View Scheme | |
With sodium hydroxide In water at 190℃; under 112511 Torr; for 0.0666667h; Temperature; | 25.32 %Spectr. |
Conditions | Yield |
---|---|
With water Equilibrium constant; pH = 0.3; | |
With water Kinetik der Bildung; | |
With water |
Conditions | Yield |
---|---|
Citraconsaeureanhydrid entsteht bei der Destillation; |
Conditions | Yield |
---|---|
bei der Destillation; auch ihr Anhydrid entsteht; unter intermediaerer Bildung von Itaconsaeureanhydrid; | |
With hydrogen iodide | |
man destilliert und laesst auf das gebildete Citraconsaeureanhydrid Wasser in der Kaelte einwirken; | |
Thermolysis.und Behandlung des Anhydrids mit Wasser; |
Conditions | Yield |
---|---|
With hydrogen iodide |
Conditions | Yield |
---|---|
at 170 - 280℃; unter vermindertem Druck; | |
With water at 280 - 300℃; under 30 - 40 Torr; |
3-methyl-2,4-hexadienedioic acid
A
citraconic acid
B
2-methylbutanedioic acid
C
2-hydroxy-2-methylbutane-1,4-dioic acid
D
2-hydroxy-2-methylpropanedioic acid
Conditions | Yield |
---|---|
With sodium hydroxide; dihydrogen peroxide at 90℃; for 4h; Product distribution; var. conc. of H2O2 and NaOH, var. time; |
Conditions | Yield |
---|---|
With dipotassium hydrogenphosphate In chloroform; water Mechanism; pH 0.3; pH 10.0; |
2-Methoxy-4-methylphenol
A
citraconic acid
B
2-methylbutanedioic acid
C
2-hydroxy-2-methylbutane-1,4-dioic acid
D
malonic acid
E
3-methyl-2,4-hexadienedioic acid
F
oxalic acid
Conditions | Yield |
---|---|
With sodium hydroxide; oxygen at 45℃; under 63755.1 Torr; for 1.5h; Product distribution; Mechanism; var. temp., time, O2 pressure, conc. and amount of NaOH, different amounts of creosol; |
2-methoxy-6-methyl-1,4-benzoquinone
A
citraconic acid
B
methoxy-maleic acid
C
2-methoxy-6-methylbenzene-1,4-diol
Conditions | Yield |
---|---|
With sodium hydroxide; sodium silicate; diethylenetriaminopentaacetic acid; dihydrogen peroxide In water at 25℃; for 1h; Mechanism; pH 9.0; |
4-hydroxy-2-methoxy-4-methyl-2,5-cyclohexadien-1-one
A
citraconic acid
B
2-methylbutanedioic acid
C
2-hydroxy-2-methylbutane-1,4-dioic acid
D
2-hydroxy-2-methylpropanedioic acid
Conditions | Yield |
---|---|
With sodium hydroxide; air at 90℃; for 2h; Product distribution; var. temp. and time, further reagent: 3percent H2O2; |
Conditions | Yield |
---|---|
With dihydrogen peroxide In water at 20℃; for 0.5h; Oxidation; |
Conditions | Yield |
---|---|
With sodium hydroxide; copper(II) ion; dihydrogen peroxide at 80℃; for 2h; Product distribution; Further Variations:; other metal ions; also without metal ion; Oxidation; decomposition; |
Conditions | Yield |
---|---|
With sodium hydroxide; dihydrogen peroxide; manganese(II) at 80℃; for 2h; Product distribution; Further Variations:; other metal ions; also without metal ion; Oxidation; decomposition; |
3,3'-dimethoxy-5,5'-dimethyl-[1,1'-biphenyl]-2,2'-diol
A
citraconic acid
B
2-methylbutanedioic acid
C
2-hydroxy-3-methoxy-5-methylbenzaldehyde
D
2-hydroxy-3-methoxy-5-methylbenzoic acid
Conditions | Yield |
---|---|
With sodium hydroxide; dihydrogen peroxide; iron(III) at 80℃; for 2h; Product distribution; Further Variations:; other metal ions; also without metal ion; Oxidation; decomposition; |
(2,4'-dihydroxy-3,3'-dimethoxy-5-methyl)diphenylmethane
A
citraconic acid
B
malic acid
C
oxalic acid
D
maleic acid
Conditions | Yield |
---|---|
With sodium hydroxide; dihydrogen peroxide; iron(III) at 80℃; for 2h; Product distribution; Further Variations:; other metal ions; also without metal ion; Oxidation; decomposition; |
4-methyl-2,5-dioxo-2,5-dihydro-pyrrole-3-carboxylic acid ethyl ester
citraconic acid
5-oxo-1-phenyl-3-pyrrolidinecarboxylic acid
A
3-methyl-1-phenylpyrrole-2,5-dione
B
citraconic acid
C
2-methylenesuccinic acid
Conditions | Yield |
---|---|
at 260℃; |
Conditions | Yield |
---|---|
at 170 - 280℃; unter vermindertem Druck (auch nach Zusatz von anderen Salzen); |
Conditions | Yield |
---|---|
With boron trifluoride at 65℃; for 0.333333h; | 100% |
With Bronsted acidic, ionic liquid containing, heteropolyanion functionalized polysiloxane network POS-HPA-IL for 5h; Reflux; Green chemistry; | 90% |
With hydrogenchloride |
citraconic acid
2-methylbutanedioic acid
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In tetrahydrofuran; ethanol at 20℃; for 24h; atmospheric pressure; | 99% |
With hydrogen; palladium on activated charcoal In tetrahydrofuran; ethanol at 20℃; for 24h; atmospheric pressure; | 99% |
With 10% Pd/C; hydrogen In tetrahydrofuran; ethanol at 20℃; under 760.051 Torr; for 24h; | 99% |
Conditions | Yield |
---|---|
With trifluoroacetic anhydride at 20℃; Inert atmosphere; | 99% |
With niobium(V) oxide hydrate In o-xylene at 160℃; for 72h; Inert atmosphere; Molecular sieve; | 94% |
With phosphorus pentoxide In chloroform for 48h; Reflux; | 80% |
Conditions | Yield |
---|---|
With chloro-trimethyl-silane; lithium fluoride; Diethyl carbonate at 60℃; for 6h; | 99% |
citraconic acid
bis(tri-n-butyltin)oxide
citraconic acid tributyltin monoester
Conditions | Yield |
---|---|
In benzene byproducts: H2O, dicarboxylate; mole ratio of (C4H9)3SnOSn(C4H9)3 and carboxylic acid 1:2; at 20°C or at reflux temp. to remove of water formed by azeotropic distn.; | 95% |
In benzene byproducts: H2O, dicarboxylate; mole ratio of (C4H9)3SnOSn(C4H9)3 and carboxylic acid 1:2; at 20°C or at reflux temp. to remove of water formed by azeotropic distn.; | 95% |
Conditions | Yield |
---|---|
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; silver carbonate In N,N-dimethyl-formamide at 120℃; for 2h; Inert atmosphere; | 90% |
Conditions | Yield |
---|---|
With trifluorormethanesulfonic acid at 60℃; under 0.3 - 3 Torr; for 50h; | 89% |
Conditions | Yield |
---|---|
With sulfuric acid for 3h; Reflux; | 88% |
With hydrogenchloride | |
With sulfuric acid; benzene | |
With phosphorus pentoxide 1.) 0-5 deg C, 2.) reflux, 3 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With sulfuric acid for 3h; Reflux; | 81% |
citraconic acid
cobalt(II) diacetate tetrahydrate
1,4-bis-(1H-imidazol-1-yl)benzene
Conditions | Yield |
---|---|
With sodium hydroxide In water at 120℃; for 96h; Autoclave; | 79% |
citraconic acid
{1,2-diaminocyclohexanepalladium(II)(citraconate)
Conditions | Yield |
---|---|
In water stirring for 2 h;; filtered; evapd.; elem. anal.;; | 77% |
citraconic acid
Conditions | Yield |
---|---|
In acetonitrile at 20 - 60℃; for 0.0833333h; | 77% |
palladium(II) acetate trimer
citraconic acid
Conditions | Yield |
---|---|
In acetone at 20℃; for 6h; | 75% |
Conditions | Yield |
---|---|
In water at 180℃; | 72% |
citraconic acid
Conditions | Yield |
---|---|
With acetic acid; hydroquinone for 3h; Diels-Alder Cycloaddition; Reflux; diastereoselective reaction; | 72% |
citraconic acid
Conditions | Yield |
---|---|
With acetic acid; hydroquinone for 3h; Diels-Alder Cycloaddition; Reflux; diastereoselective reaction; | 72% |
Conditions | Yield |
---|---|
71% |
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