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:616-02-4
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inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
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inquiryCitraconic anhydride Basic information Product Name: Citraconic anhydride Synonyms: 2,5-Furanedione, 3-methyl;3-Methyl-2,5-furandione;3-methyl-5-furandione;3-methyl-furan-2,5-dione;3-Met
Cas:616-02-4
Min.Order:1 Kilogram
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Type:Lab/Research institutions
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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inquirySynonyms: 2,5-Furanedione, 3-methyl;3-Methyl-2,5-furandione;3-methyl-5-furandione;3-methyl-furan-2,5-dione;3-Methylmaleic anhydride;3-methylmaleicanhydride;alpha-Methylmaleic anhydride;alpha-methylmaleicanhydride CAS: 616-02-4 MF: C5H4O3 MW: 112
Cas:616-02-4
Min.Order:1 Kilogram
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Min.Order:1 Kilogram
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inquiryCitraconic anhydride CAS:616-02-4 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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Min.Order:1 Gram
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Cas:616-02-4
Min.Order:1 Kilogram
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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
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Cas:616-02-4
Min.Order:1 Gram
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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
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Min.Order:10 Gram
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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
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Cas:616-02-4
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Shanghai Lonwin Chemical company is a subsidiary of Lonwin Industry Group Limited, was established in 2011 and is headquartered in Shanghai, adjacent to China National Convention and Exhibition Center and Hongqiao transportation hub.Lonwinchem is
Cas:616-02-4
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Type:Other
inquiryhigh purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
Conditions | Yield |
---|---|
With calcium In 5,5-dimethyl-1,3-cyclohexadiene at 120℃; under 750.075 Torr; for 1.5h; Reagent/catalyst; | 99.3% |
Stage #1: 2-methylenesuccinic acid With acetic anhydride at 80℃; Stage #2: at 230℃; under 262.526 Torr; for 4h; | 94% |
4Cs(1+)*SiW12O40(4-) = Cs4{SiW12O40} at 170 - 200℃; under 50 - 100 Torr; for 5.5h; Product distribution / selectivity; | 92.5% |
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% |
1,3,5-Trioxan
succinic acid anhydride
A
methyl hydrogen succinate
B
citraconic acid anhydride
C
carbon dioxide
Conditions | Yield |
---|---|
With gamma-alumina at 380℃; under 3750.38 Torr; Stobbe Condensation; Autoclave; Flow reactor; | A 7% B 43% C 16% |
formaldehyd
Dimethyl succinate
A
succinic acid anhydride
B
methyl hydrogen succinate
C
citraconic acid anhydride
D
carbon dioxide
Conditions | Yield |
---|---|
With gamma-alumina In methanol; water at 380℃; under 3750.38 Torr; Kinetics; Concentration; Temperature; Stobbe Condensation; Autoclave; Flow reactor; | A 8% B 18% C 30% D 10% |
1,3,5-Trioxan
methyl hydrogen succinate
A
succinic acid anhydride
B
citraconic acid anhydride
C
carbon dioxide
D
Dimethyl succinate
Conditions | Yield |
---|---|
With gamma-alumina at 380℃; under 3750.38 Torr; Stobbe Condensation; Autoclave; Flow reactor; | A 9% B 23% C 15% D 30% |
1,3,5-Trioxan
Dimethyl succinate
A
succinic acid anhydride
B
methyl hydrogen succinate
C
citraconic acid anhydride
D
carbon dioxide
Conditions | Yield |
---|---|
With gamma-alumina at 380℃; under 3750.38 Torr; Temperature; Pressure; Stobbe Condensation; Autoclave; Flow reactor; | A 8% B 19% C 26% D 18% |
(Z)-(2-methyl-4-(4-nitrophenylamino)-4-oxo)but-2-enoic acid
A
citraconic acid anhydride
B
(Z)-(3-methyl-4-(4-nitrophenylamino)-4-oxo)but-2-enoic acid
C
4-nitro-aniline
Conditions | Yield |
---|---|
In tetrahydrofuran for 24h; Reflux; | A 9% B n/a C 22% |
Conditions | Yield |
---|---|
bei der Destillation; |
2,6-dioxo-3,6-dihydro-2H-pyran-4-carboxylic acid
citraconic acid anhydride
Conditions | Yield |
---|---|
beim Destillieren; |
Conditions | Yield |
---|---|
at 210℃; |
Conditions | Yield |
---|---|
With acetyl chloride at 100℃; beim Erhitzen im geschlossenen Rohr; |
Conditions | Yield |
---|---|
at 83 - 89℃; under 15 Torr; Heating; | 4.9 g |
methoxymethyl-succinic acid
citraconic acid anhydride
Conditions | Yield |
---|---|
at 210 - 230℃; durch Destillation; | |
at 210 - 230℃; beim Destillieren; |
Conditions | Yield |
---|---|
durch Destillation; | |
With 2,3-Dimethylaniline | |
bei der Destillation; |
citraconic acid anhydride
anthracene-citraconic anhydride adduct
propionic acid
A
citraconic acid anhydride
B
anthracene
Conditions | Yield |
---|---|
at 142 - 143℃; Rate constant; Dissoziation; | |
at 131.5 - 143℃; Equilibrium constant; Dissoziation; |
Conditions | Yield |
---|---|
bei der Destillation; |
2,5-bis<(trimethylsilyl)oxy>-3-methylfuran
citraconic acid anhydride
Conditions | Yield |
---|---|
With bromine at -78℃; Rate constant; iodine at 0 deg C; |
citraconic acid anhydride
Conditions | Yield |
---|---|
With dipotassium hydrogenphosphate; water for 0.333333h; Equilibrium constant; Ambient temperature; pH = 10.0; |
citric acid
A
diethyl 3-hydroxypentanedioate
B
Mesaconic acid
C
1 propene 1,2,3 tricarboxylic acid
D
2-methylenesuccinic acid
E
citraconic acid anhydride
F
itaconic acid anhydride
Conditions | Yield |
---|---|
With Sn/Pb solder at 150 - 210℃; |
Conditions | Yield |
---|---|
With oxygen; P/Fe In water at 200℃; Yield given. Yields of byproduct given; |
2-oxo-propionic acid
A
citraconic acid anhydride
B
carbon dioxide
C
acetic acid
Conditions | Yield |
---|---|
With oxygen; P/Fe In water at 200℃; Product distribution; var. temp.; |
Conditions | Yield |
---|---|
With lithium perchlorate In diethyl ether Rate constant; Equilibrium constant; Ambient temperature; t1/2 = 4.4 h; | |
at 40℃; Equilibrium constant; Rate constant; t1/2 = 3.3 h; | |
at 20℃; Equilibrium constant; Rate constant; t1/2 = 52 h; |
A
(2-furyl)methyl alcohol
B
cyclohexenone
C
citraconic acid anhydride
D
3,4-dihydro-6-methyl-2H-pyran-2-one
Conditions | Yield |
---|---|
With air at 400 - 450℃; Oxidation; Formation of xenobiotics; |
citraconic acid anhydride
Conditions | Yield |
---|---|
at 250℃; |
Conditions | Yield |
---|---|
under 30 - 40 Torr; Eintragen in ein auf 300grad erhitztes Kupfergefaess; |
(3aRS,4SR,7RS,7aSR)-3a-methyl-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione
A
citraconic acid anhydride
Conditions | Yield |
---|---|
at 200℃; unter Stickstoff; |
Conditions | Yield |
---|---|
With sulfuric acid for 12h; Heating; | 100% |
With sulfuric acid Heating; | 90% |
With sulfuric acid for 12h; Heating; | 75% |
citraconic acid anhydride
4-methoxy-benzylamine
1-(4-Methoxy-benzyl)-3-methyl-pyrrole-2,5-dione
Conditions | Yield |
---|---|
With acetic acid at 100℃; for 5h; | 100% |
In toluene for 13h; Heating; | 80% |
citraconic acid anhydride
cyclopenta-1,3-diene
(3aRS,4SR,7RS,7aSR)-3a-methyl-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione
Conditions | Yield |
---|---|
In Petroleum ether at 20℃; Diels-Alder Cycloaddition; | 99% |
In chloroform at 0 - 20℃; Diels-Alder Cycloaddition; Darkness; | 92% |
With lithium perchlorate In diethyl ether for 3h; Ambient temperature; | 90% |
With bis(trifluoromethane)sulfonimide lithium In acetone at 25℃; for 2.5h; Cycloaddition; Diels-Alder reaction; | 99 % Spectr. |
In diethyl ether at 20℃; for 16h; |
Conditions | Yield |
---|---|
In acetone | 99% |
Conditions | Yield |
---|---|
In toluene for 48h; Diels-Alder reaction; Heating; | 99% |
citraconic acid anhydride
(R)-(+)-3-methyldihydrofuran-2,5-dione
Conditions | Yield |
---|---|
With bis(norbornadiene)rhodium(l)tetrafluoroborate; C46H38F6FeN2P2S(2+); hydrogen In ethyl acetate at 20℃; under 760.051 Torr; for 1.16667h; Glovebox; Autoclave; enantioselective reaction; | 99% |
With 1,4-dihydronicotinamide adenine dinucleotide; sodium phosphate buffer; Marchantia polymorpha p68 reductase at 35℃; for 4h; pH=7.0; | |
With C31H42IrNOP(1+)*C32H12BF24(1-); hydrogen In dichloromethane at 20℃; under 7500.75 Torr; for 18h; Pressure; Autoclave; High pressure; enantioselective reaction; | n/a |
Conditions | Yield |
---|---|
With acetic acid for 48h; Reflux; | 99% |
Conditions | Yield |
---|---|
In water at 20℃; | 98% |
1,3-di(aminomethyl)benzene
citraconic acid anhydride
1,3-bis(citraconimidomethyl)benzol
Conditions | Yield |
---|---|
With acetic acid In toluene at 110℃; for 5h; Temperature; Reagent/catalyst; Solvent; | 97.5% |
With acetic acid at 110℃; for 4h; Temperature; Time; | 92% |
Conditions | Yield |
---|---|
With sulfuric acid | 97% |
ethene
citraconic acid anhydride
1-methyl-3-oxabicyclo[3.2.0]heptane-2,4-dione
Conditions | Yield |
---|---|
With thio-xanthene-9-one In ethyl acetate at 25℃; under 9000.9 Torr; for 0.00833333h; Concentration; Solvent; Flow reactor; UV-irradiation; | 96% |
With thio-xanthene-9-one In ethyl acetate at 25℃; under 9000.9 Torr; for 10h; Catalytic behavior; Concentration; Solvent; Time; UV-irradiation; Flow reactor; | 96% |
With benzophenone In acetone at 10 - 15℃; for 6h; Irradiation; | 69% |
citraconic acid anhydride
C16H12N4S2
Conditions | Yield |
---|---|
In chloroform at 80℃; for 18h; | 96% |
In chloroform at 80℃; |
Conditions | Yield |
---|---|
With acetic acid In toluene for 1h; Inert atmosphere; Reflux; | 96% |
methanol
citraconic acid anhydride
2-hydroxy-5-chloro-aniline
Methyl α-(6-chloro-3,4-dihydro-2-methyl-3-oxo-2H-1,4-benzoxazin-2-yl)acetate
Conditions | Yield |
---|---|
With triethylamine for 5h; Heating; | 95% |
citraconic acid anhydride
benzylamine
1-Benzyl-3-methyl-2,5-dihydropyrrole-2,5-dione
Conditions | Yield |
---|---|
at 20 - 120℃; Inert atmosphere; Neat (no solvent); | 95% |
With acetic acid for 2h; Heating; | 92% |
With acetic acid for 12h; Heating; | 90% |
citraconic acid anhydride
anthranilic acid
2-(3-methyl-2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)benzoic acid
Conditions | Yield |
---|---|
at 140℃; for 20h; | 95% |
Conditions | Yield |
---|---|
In ethyl acetate | 95% |
Cyclohexyl isocyanide
citraconic acid anhydride
dimethyl acetylenedicarboxylate
dimethyl 2-(cyclohexylimino)-8-methyl-7-oxo-1,6-dioxaspiro[4.4]nona-3,8-diene-3,4-dicarboxylate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 24h; regiospecific reaction; | 95% |
citraconic acid anhydride
(9S)-9-Methyl-1-phenylbicyclo<4.3.0>nona-1(2),3(4)-diene
A
C21H22O3
B
C21H22O3
Conditions | Yield |
---|---|
In dichloromethane under 4875390 Torr; for 240h; Ambient temperature; | A 1% B 94% |
citraconic acid anhydride
Conditions | Yield |
---|---|
In tetrahydrofuran the anhydride is added to the starting complex in THF, stored at -20°C for 6 d; the solvent is removed, the crude solid is triturated with ether, driedin vac., elem. anal.; | 94% |
tert-butylisonitrile
citraconic acid anhydride
dimethyl acetylenedicarboxylate
dimethyl 2-(tert-butylimino)-8-methyl-7-oxo-1,6-dioxaspiro[4.4]nona-3,8-diene-3,4-dicarboxylate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 24h; regiospecific reaction; | 94% |
citraconic acid anhydride
emetine dihydrochloride
Conditions | Yield |
---|---|
With triethylamine In chloroform for 0.0833333h; | 94% |
L-valine
citraconic acid anhydride
(S)-3-methyl-2-(3-methyl-2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)butanoic acid
Conditions | Yield |
---|---|
With acetic acid at 120℃; for 1h; Microwave irradiation; Sealed tube; | 94% |
In acetic acid at 120℃; for 1h; Microwave irradiation; | 94% |
Conditions | Yield |
---|---|
In toluene for 2h; Reflux; | 94% |
Conditions | Yield |
---|---|
With acetic acid for 48h; Reflux; | 93% |
citraconic acid anhydride
Conditions | Yield |
---|---|
With acetic acid for 12h; Reflux; | 93% |
citraconic acid anhydride
4-methoxy-aniline
A
(Z)-(4-(4-methoxyphenylamino)-2-methyl-4-oxo)but-2-enoic acid
B
(Z)-3-(4-Methoxy-phenylcarbamoyl)-3-methyl-acrylic acid
Conditions | Yield |
---|---|
In tetrahydrofuran for 2h; Reflux; regioselective reaction; | A 92% B n/a |
In diethyl ether at 10 - 15℃; for 0.5h; Yield given; | |
In diethyl ether at 10 - 15℃; for 0.5h; Yields of byproduct given. Title compound not separated from byproducts; |
methanol
citraconic acid anhydride
2-hydroxy-5-nitroaniline
(2-Methyl-6-nitro-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-2-yl)-acetic acid methyl ester
Conditions | Yield |
---|---|
With triethylamine Heating; | 92% |
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