Dayangchem's 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. DayangChem can provide different quantities
Cas:591-11-7
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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Cas:591-11-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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Cas:591-11-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryAnsciep 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
2(5H)-Furanone,5-methyl- cas 591-11-7Appearance: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
Strong R&D strength and team We have a R&D team with around 30 R&D personnel.All of our employees have chemical backgrounds and have worked in the chemical industry for many years.Our laboratory can synthesize target products with wei
Buy high quality BETA-ANGELICA LACTONE 591-11-7 factory Company Information Hekang Biotechnology Co.,Ltd is a company who dedicate to contract manufacturing and custom synthesis service. Since its foundation in 2005, Hekang has kept striving to
Cas:591-11-7
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
Stage #1: (E)-3-pentenoic acid With Oxalyl bromide; dimethyl sulfoxide In dichloromethane at -10 - 20℃; for 1.16667h; Inert atmosphere; Stage #2: With potassium carbonate In dichloromethane-d2; water at 20℃; for 5h; Inert atmosphere; | 93% |
Stage #1: (E)-3-pentenoic acid With oxalyl dichloride; 1,1'-sulfinylbisbenzene In dichloromethane at -78℃; for 0.166667h; Inert atmosphere; Stage #2: With 18-crown-6 ether; potassium carbonate In dichloromethane at -78 - 20℃; for 5h; Reagent/catalyst; Inert atmosphere; | 85% |
Stage #1: (E)-3-pentenoic acid With oxalyl dichloride; 1,1'-sulfinylbisbenzene In dichloromethane at -78 - 20℃; for 1h; Inert atmosphere; Stage #2: With 18-crown-6 ether; potassium carbonate In dichloromethane at 20℃; for 5h; Inert atmosphere; | 85% |
With (M*,3aS*,3a'S*)-3,3',3a',4,4',5,5'-octahydro-3,3,3',3'-tetraisopropyl-6,6'-spirobi[6H-cyclopent[c]isoxazole]; palladium diacetate; p-benzoquinone In dichloromethane at 30℃; for 24h; Inert atmosphere; | 71% |
carbon monoxide
(2R*,3Z)-4-Iodo-3-buten-2-ol
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With potassium carbonate; hydrazine; bis-triphenylphosphine-palladium(II) chloride In tetrahydrofuran at 35℃; under 2280 Torr; for 72h; | 95% |
Conditions | Yield |
---|---|
Stage #1: 3-pentenoic acid With Oxalyl bromide; dimethyl sulfoxide In dichloromethane at -10 - 20℃; Inert atmosphere; Stage #2: With sodium hydroxide In dichloromethane; water for 5h; Reagent/catalyst; | 93% |
levulinic acid
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
5-methylenedihydrofuran-2-one
Conditions | Yield |
---|---|
With silylated SiO2 catalyst In water at 250℃; under 760.051 Torr; for 0.8h; Reagent/catalyst; Inert atmosphere; Flow reactor; |
Conditions | Yield |
---|---|
With H-ZSM5/SiO2 at 129.84℃; under 75.0075 Torr; Reagent/catalyst; Temperature; | A 33% B 64% |
bei der Destillation; | |
With montmorillonite K 10 at 165℃; under 50 Torr; Overall yield = 92 %; Overall yield = 15.6 g; |
Conditions | Yield |
---|---|
bei der Destillation; Behandeln mit einer konz. Kaliumcarbonatloesung; | |
Multi-step reaction with 2 steps 1: 60 percent / H3PO4 / Heating 2: 43 percent / Et3N / benzene / 15 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: H3PO4 2: 79 percent / Et3N / 4 h / 100 °C View Scheme | |
Multi-step reaction with 2 steps 1: phosphoric acid / 175 °C 2: triethylamine / ethanol / 12 h View Scheme | |
Stage #1: levulinic acid under 50 Torr; Stage #2: With triethylamine at 80℃; |
4-oxopentanoic acid ethyl ester
A
5-methyl-5H-furan-2-one
B
5-methyl-dihydro-furan-2-one
Conditions | Yield |
---|---|
With formic acid; UN-No2881 ex. Kataleuna at 275℃; | A 7% B 30% |
D-Xylose
A
furfural
B
5-methyl-5H-furan-2-one
C
3-methyl-5H-furan-2-one
D
2,3-Pentanedione
E
acetaldehyde
F
acetic acid
G
2,5-hexanedione
H
hydroxy-2-propanone
I
dimethylglyoxal
Conditions | Yield |
---|---|
With alumina-doped tungstated mesoporous zirconia In water at 170℃; Reagent/catalyst; Solvent; Inert atmosphere; |
Conditions | Yield |
---|---|
With triethylamine at 100℃; for 4h; | 79% |
With triethylamine In toluene at 60℃; for 6h; | 60% |
With triethylamine at 75℃; for 2h; | 55% |
(2-furyl)methyl alcohol
methanol
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
levulinic acid methyl ester
D
2-(methoxymethyl)furan
Conditions | Yield |
---|---|
With zeolite H-beta at 110℃; for 1.5h; Autoclave; | A n/a B n/a C 10.1 %Chromat. D 18.3 %Chromat. |
(2-furyl)methyl alcohol
ethanol
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
2-(ethoxymethyl)furan
D
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With zeolite H-beta at 110℃; for 1.5h; Autoclave; | A n/a B n/a C 14.4 %Chromat. D 23.3 %Chromat. |
2-(ethoxymethyl)furan
isopropyl alcohol
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
isopropyl levulinate
D
levulinic acid
Conditions | Yield |
---|---|
With zeolite H-beta at 110℃; for 1.5h; Autoclave; | A n/a B n/a C 7.7 %Chromat. D 6.4 %Chromat. |
3-Pentenenitrile
A
5-methyl-5H-furan-2-one
B
dihydro-4-acetoxy-5-methyl-2(3H)-furanone
Conditions | Yield |
---|---|
With tetrafluoroboric acid; [bis(acetoxy)iodo]benzene In acetic acid at 70℃; for 14h; | A 6% B 58% |
carbon dioxide
(+/-)-(Z)-4-(butyltellanyl)but-3-en-2-ol
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
Stage #1: (+/-)-(Z)-4-(butyltellanyl)but-3-en-2-ol With n-butyllithium In tetrahydrofuran at -78℃; Stage #2: carbon dioxide In tetrahydrofuran at -78 - 20℃; Further stages.; | 51% |
(E)-Methyl 4-hydroxypent-2-enoate
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With phenanthrene In dichloromethane at 25 - 30℃; UV-irradiation; | 62% |
(+/-)-cis,trans-4-methyl-2-phenylsulfinylbutyrolactone
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With pyridine In benzene at 110 - 120℃; for 1.5h; | 34 mg |
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With dihydrogen peroxide In dichloromethane for 0.5h; | 74% |
levulinic acid methyl ester
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
5-methyl-dihydro-furan-2-one
Conditions | Yield |
---|---|
With hydrogen In water at 80℃; under 22502.3 Torr; for 1h; Time; Autoclave; |
butyl levulinate
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
5-methyl-dihydro-furan-2-one
Conditions | Yield |
---|---|
With hydrogen In water at 80℃; under 22502.3 Torr; for 1h; Autoclave; |
3-Pentenenitrile
[bis(acetoxy)iodo]benzene
A
5-methyl-5H-furan-2-one
B
dihydro-4-acetoxy-5-methyl-2(3H)-furanone
Conditions | Yield |
---|---|
With tetrafluoroboric acid In acetic acid at 70℃; for 14h; | A 6% B 58% |
levulinic acid methyl ester
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
levulinic acid
D
5-methyl-dihydro-furan-2-one
Conditions | Yield |
---|---|
With hydrogen In water at 80℃; under 22502.3 Torr; for 1.5h; Autoclave; |
(+/-)-cis,trans-4-methyl-2-phenylsulfanylbutyrolactone
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With pyridine; 3-chloro-benzenecarboperoxoic acid 2.) PhH; Yield given. Multistep reaction; | |
Multi-step reaction with 2 steps 1: m-chloroperoxybenzoic acid / CH2Cl2 / 2 h / 0 °C 2: 34 mg / pyridine / benzene / 1.5 h / 110 - 120 °C View Scheme |
4-Oxo-2-phenylsulfanyl-pentanoic acid
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: diethyl ether 2: Zn(BH4)2 3: TsOH 4: 1.) mCPBA; 2.) pyr. / 2.) PhH View Scheme | |
Multi-step reaction with 5 steps 1: diethyl ether 2: Zn(BH4)2 / diethyl ether / 3 h / 0 °C / or NaBH4 3: 63 mg / p-toluenesulfonic acid / benzene / 2 h / 50 °C 4: m-chloroperoxybenzoic acid / CH2Cl2 / 2 h / 0 °C 5: 34 mg / pyridine / benzene / 1.5 h / 110 - 120 °C View Scheme |
methyl 4-oxo-2-(phenylthio)pentanoate
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: Zn(BH4)2 2: TsOH 3: 1.) mCPBA; 2.) pyr. / 2.) PhH View Scheme | |
Multi-step reaction with 4 steps 1: Zn(BH4)2 / diethyl ether / 3 h / 0 °C / or NaBH4 2: 63 mg / p-toluenesulfonic acid / benzene / 2 h / 50 °C 3: m-chloroperoxybenzoic acid / CH2Cl2 / 2 h / 0 °C 4: 34 mg / pyridine / benzene / 1.5 h / 110 - 120 °C View Scheme |
4-Hydroxy-2-phenylsulfanyl-pentanoic acid methyl ester
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: TsOH 2: 1.) mCPBA; 2.) pyr. / 2.) PhH View Scheme | |
Multi-step reaction with 3 steps 1: 63 mg / p-toluenesulfonic acid / benzene / 2 h / 50 °C 2: m-chloroperoxybenzoic acid / CH2Cl2 / 2 h / 0 °C 3: 34 mg / pyridine / benzene / 1.5 h / 110 - 120 °C View Scheme |
(E)-3-pentenoic acid
[bis(acetoxy)iodo]benzene
A
5-methyl-5H-furan-2-one
cis-dihydro-4-acetoxy-5-methyl-2(3H)-furanone
Conditions | Yield |
---|---|
With tetrafluoroboric acid In acetic acid for 1h; Ambient temperature; | A 41% B 25% |
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With dihydrogen peroxide In tetrahydrofuran at 0 - 25℃; |
(2-furyl)methyl alcohol
isopropyl alcohol
A
5-methyl-5H-furan-2-one
B
5-methyl-2-furanone
C
isopropyl levulinate
D
isopropopyl (2-methylfuran) ether
Conditions | Yield |
---|---|
With zeolite H-beta at 110℃; for 1.5h; Catalytic behavior; Reagent/catalyst; Temperature; Autoclave; | A n/a B n/a C 7 %Chromat. D 35.4 %Chromat. |
(E)-3-pentenoic acid
[bis(acetoxy)iodo]benzene
A
5-methyl-5H-furan-2-one
B
dihydro-4-acetoxy-5-methyl-2(3H)-furanone
Conditions | Yield |
---|---|
With tetrafluoroboric acid; [bis(acetoxy)iodo]benzene In acetic acid for 1h; Ambient temperature; | A 41% B 25% |
Conditions | Yield |
---|---|
With iso-butanol In water at 119.84℃; for 48h; Reagent/catalyst; Time; Solvent; |
5-methyl-5H-furan-2-one
2,2'-dimethyl-3',4'-dihydro-2H,2'H-[2,3']bifuranyl-5,5'-dione
Conditions | Yield |
---|---|
With bis(2,6-di-tert-butyl-4-methylphenoxide)methylaluminum; triethylamine In dichloromethane at 25℃; for 1h; Catalytic behavior; Reagent/catalyst; Solvent; | 99% |
Conditions | Yield |
---|---|
With (Bu4N)2S2O8 at 30℃; for 0.333333h; | 92% |
Conditions | Yield |
---|---|
With chlorobis(ethylene)rhodium(I) dimer; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; triethylamine In ethanol at 20℃; for 12h; Schlenk technique; Inert atmosphere; regioselective reaction; | 89% |
Conditions | Yield |
---|---|
With benzophenone for 1.5h; Addition; Irradiation; | 83% |
5-methyl-5H-furan-2-one
4,4'-dimethoxytrityl chloride
Conditions | Yield |
---|---|
With sodium carbonate at 20℃; for 18h; Sealed tube; | 82% |
Conditions | Yield |
---|---|
Stage #1: phenyldimethylsilyl chloride With lithium doped with sodium In tetrahydrofuran at 0℃; Stage #2: With copper(l) cyanide In tetrahydrofuran at -20℃; for 0.333333h; Stage #3: 5-methyl-5H-furan-2-one Further stages; | 80% |
Stage #1: phenyldimethylsilyl chloride With lithium In tetrahydrofuran at 0℃; Stage #2: With copper(l) cyanide In tetrahydrofuran at -20℃; for 0.333333h; Stage #3: 5-methyl-5H-furan-2-one In tetrahydrofuran | 80% |
5-methyl-5H-furan-2-one
3-bromo-5-methyl-2(5H)-furanone
Conditions | Yield |
---|---|
Stage #1: 5-methyl-5H-furan-2-one With bromine In tetrachloromethane for 1.5h; Heating; Stage #2: With triethylamine at 20℃; for 2h; | 66% |
Stage #1: 5-methyl-5H-furan-2-one With bromine In tetrachloromethane for 3h; Heating; Stage #2: With triethylamine for 4h; | 46% |
With bromine at 20 - 90℃; for 20h; | 43% |
Multi-step reaction with 2 steps 1: Br2 / CCl4 / 1.5 h / Heating 2: Et3N / CCl4 / 2 h / Ambient temperature View Scheme | |
Multi-step reaction with 2 steps 1: Br2 / CCl4 / 15 h / Ambient temperature 2: NEt3 / benzene / 3 h / 0 °C View Scheme |
5-methyl-5H-furan-2-one
(2E,4E)-3-Ethyl-5-methoxy-penta-2,4-dienoic acid methyl ester
methyl (1R*,2S*,5S*,6R*,9S*)-3-ethyl-5-methoxy-9-methyl-7-oxo-8-oxabicyclo<4.3.0>non-3-ene-2-carboxylate
Conditions | Yield |
---|---|
In dichloromethane at 50℃; under 11250900 Torr; for 60h; | 65% |
5-methyl-5H-furan-2-one
triisopropylsilyl trifluoromethanesulfonate
triisopropyl((5-methylfuran-2-yl)oxy)silane
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0 - 20℃; for 2h; | 65% |
With triethylamine In dichloromethane at 0 - 20℃; for 18h; Inert atmosphere; | 64% |
5-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With hydrazine In water at 80℃; for 2h; | A n/a B 63% |
Conditions | Yield |
---|---|
In water at 80℃; for 2h; | A 61% B n/a |
In water at 80℃; for 2h; Mechanism; diastereoselective ring chain transformation, other butenolides; |
Conditions | Yield |
---|---|
Stage #1: tert-butylchlorodiphenylsilane With lithium doped with sodium In tetrahydrofuran at 0℃; Stage #2: With copper(l) cyanide In tetrahydrofuran at -20℃; for 0.333333h; Stage #3: 5-methyl-5H-furan-2-one Further stages; | 59% |
Stage #1: tert-butylchlorodiphenylsilane With lithium In tetrahydrofuran at 0℃; Stage #2: With copper(l) cyanide In tetrahydrofuran at -20℃; for 0.333333h; Stage #3: 5-methyl-5H-furan-2-one In tetrahydrofuran | 59% |
Conditions | Yield |
---|---|
With phenyl isocyanate; N-ethyl-N,N-diisopropylamine In toluene for 3h; Reflux; | 55% |
5-methyl-5H-furan-2-one
(2RS,3RS,4RS)-2,3-Epoxy-4-hydroxypentanoic acid
(3RS,4RS,5RS)-3,4-Epoxy-5-methyldihydro-2(3H)-furanone
Conditions | Yield |
---|---|
With sodium hypochlorite In pyridine; water 0 deg C, 1 h then r.t. 1.5 h; | A n/a B 54% |
5-methyl-5H-furan-2-one
(3RS,4RS,5RS)-3,4-Epoxy-5-methyldihydro-2(3H)-furanone
Conditions | Yield |
---|---|
With sodium hypochlorite In pyridine Ambient temperature; | 54% |
5-methyl-5H-furan-2-one
(9S)-9-Methyl-1-phenylbicyclo<4.3.0>nona-1(2),3(4)-diene
Conditions | Yield |
---|---|
With zinc(II) chloride under 4875390 Torr; for 70h; Ambient temperature; | 48% |
Conditions | Yield |
---|---|
at 60℃; for 168h; | A 7% B 44% C 11% |
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