ISO We have exported this item to many countries many times so we have rich experience for it. Appearance:Colorless transparent liquid ,Have a similar ester smell Storage:Keep in cool place Package:240kg/drum Application:Synthesis of vitamin B im
Cas:517-23-7
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryItems Standard Result Assay 99.0%min 99.16% Appearance Colorless transparent liquid
Cas:517-23-7
Min.Order:1 Kilogram
FOB Price: $5.0 / 30.0
Type:Manufacturers
inquiryProduct description: Product name 2-Acetylbutyrolactone CAS number 517-23-7 Assay ≥99% Appearance Transparent to slightly yellow liquid Capacity 200mt/year Application Pharma
Cas:517-23-7
Min.Order:10 Gram
FOB Price: $12.0
Type:Lab/Research institutions
inquiryhe company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality se T rvice Appearance:White or
Cas:517-23-7
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
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
1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:517-23-7
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryColorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
2-Acetylbutyrolactone Alias: ABL Use: Mainly used in the synthesis of vitamin B1 CAS No: 517-23-7 Molecular Structure:
Cas:517-23-7
Min.Order:1 Kilogram
FOB Price: $2.0 / 3.0
Type:Manufacturers
inquiryAs 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 according to the contract research and development services for t
Cas:517-23-7
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:517-23-7
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryHebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. Main products are Titanium dioxide(CAS13463-67-7). Lead a
Cas:517-23-7
Min.Order:1000 Kilogram
FOB Price: $1.0
Type:Trading Company
inquiryTIANFUCHEM--517-23-7--2-Acetylbutyrolactone factory price Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established stable business r
Cas:517-23-7
Min.Order:1 Metric Ton
FOB Price: $2000.0
Type:Lab/Research institutions
inquiryOur advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be
Cas:517-23-7
Min.Order:1 Kilogram
FOB Price: $48.0 / 58.0
Type:Trading Company
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:517-23-7
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam
Cas:517-23-7
Min.Order:1 Kilogram
FOB Price: $7.0 / 10.0
Type:Trading Company
inquiryWe are leading fine chemicals supplier in China with ISO certificate, Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED
Cas:517-23-7
Min.Order:1 Gram
FOB Price: $3.0
Type:Lab/Research institutions
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:Colorless liquid Storage:Store in sealed containers at cool
Cas:517-23-7
Min.Order:100 Gram
Negotiable
Type:Other
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:517-23-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry2-Acetylbutyrolactone Basic information Description Reference Product Name: 2-Acetylbutyrolactone Synonyms: -(-2-Hydroxyethyl)acetoaceticacid-lactone;2-Acetyl-4-hydroxybutyric acid gamma-lactone;2-Acetylbutyrolacton;2-Oxo-3-acetyltetrahydrofura
Cas:517-23-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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
Cas:517-23-7
Min.Order:1 Kilogram
FOB Price: $21.4 / 24.6
Type:Trading Company
inquiry2-Acetylbutyrolactone CAS:517-23-7 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 inter
Cas:517-23-7
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:517-23-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1.high quality: quality is life. quality is the most important element for all goods. we have a lab doing research in wuhan china. hplc and nmr is available if needed. 2.reasonable price: we provide high quality products with competi
Cas:517-23-7
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
inquiryOur Advantage 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good qual
Cas:517-23-7
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie
Cas:517-23-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:517-23-7
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
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
Chemlyte Solutions believe that customers and suppliers deserve much more than what traditional distributors can offer. To grow in today s fast-paced and increasingly competitive market it is essential to be able to quickly adapt to market forces eff
Cas:517-23-7
Min.Order:100 Gram
Negotiable
Type:Other
inquiryMassive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
Cas:517-23-7
Min.Order:1 Gram
FOB Price: $1.0
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:517-23-7
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With ethyl hydrazine hydrochloride In methanol at 10 - 20℃; for 2h; Temperature; | A 98.9% B 98.29% |
Conditions | Yield |
---|---|
Stage #1: 4-butanolide; acetic acid methyl ester With sodium methylate In methanol at 45 - 90℃; under 750.075 Torr; for 10h; Inert atmosphere; Large scale; Stage #2: With carbon dioxide In methanol; water at 0 - 35℃; under 6000.6 Torr; for 0.5h; Temperature; Pressure; Reagent/catalyst; Large scale; | 96% |
Conditions | Yield |
---|---|
With sodium ethanolate at 75℃; for 10h; Reflux; | 93% |
Stage #1: 4-butanolide; ethyl acetate With sodium methylate at 50 - 100℃; for 5h; Autoclave; Stage #2: With sulfuric acid at -5 - 5℃; for 5h; pH=6 - 7; | 83% |
With sodium at 80℃; for 8h; Mechanism; |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In ethyl acetate at 60 - 95℃; under 750.075 - 7500.75 Torr; for 3.5h; Solvent; Temperature; Reagent/catalyst; Autoclave; | 79.31% |
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol; water at -5 - 0℃; for 50h; | 78% |
With triethylamine In methanol at 5 - 95℃; under 1500.15 - 2250.23 Torr; for 2.15 - 5h; Product distribution / selectivity; | 40.4% |
With N,N,N',N'-tetramethylguanidine In methanol at 5 - 65℃; under 1500.15 - 2250.23 Torr; for 1.15 - 6.18333h; Product distribution / selectivity; | 30.8% |
Conditions | Yield |
---|---|
Stage #1: 4-butanolide With lithium hexamethyldisilazane In tetrahydrofuran at -78℃; for 0.25h; Inert atmosphere; Stage #2: acetic anhydride In tetrahydrofuran at -78℃; for 1h; Inert atmosphere; | 42% |
oxirane
ethanol
sodium ethyl acetylacetate enolate
3-acetyl-2-oxo-4,5-dihydrofuran
oxirane
sodium ethyl acetylacetate enolate
3-acetyl-2-oxo-4,5-dihydrofuran
Conditions | Yield |
---|---|
With ethanol |
ethanol
sodium ethyl acetylacetate enolate
2-chloro-ethanol
3-acetyl-2-oxo-4,5-dihydrofuran
Conditions | Yield |
---|---|
With sodium hydroxide 1.) water, EtOH, 0 deg C, 30 min, 2.) 0 - 5 deg C, 72 h; Yield given. Multistep reaction; | |
With sodium hydroxide; sulfuric acid In water; ethylene glycol |
4-butanolide
sodium ethanolate
ethyl acetate
A
3-acetyl-2-oxo-4,5-dihydrofuran
B
5-Hydroxy-2-pentanone
C
ethyl 4-hydroxybutanoate
D
ethyl 4-(acetyloxy)butanoate
E
ethyl acetoacetate
F
α-(2-Tetrahydrofuranylidene)-γ-butyrolactone
Conditions | Yield |
---|---|
at 100℃; under 1064 Torr; for 0.5h; Product distribution; various molar ratio of the reagents, other temp., other pressure, other time; |
Conditions | Yield |
---|---|
With 18-crown-6 ether 1.) THF, RT, 15 min, 2.) THF, RT, 3 h; Yield given. Multistep reaction; |
3-<1-(N-phenylamino)-ethylidene>-4,5-dihydro-2(3H)-furanone
A
3-acetyl-2-oxo-4,5-dihydrofuran
B
aniline
Conditions | Yield |
---|---|
With water at 25℃; Rate constant; Mechanism; |
Conditions | Yield |
---|---|
With aluminium trichloride; Trioxane In methanol Dehydration; Heating; |
Conditions | Yield |
---|---|
With sodium |
hydrogenchloride
2-acetyl-2-(methylsulfanyl-methyl)-succinic acid diethyl ester
A
3-acetyl-2-oxo-4,5-dihydrofuran
B
3-methylene-4-oxopentanoic acid
Conditions | Yield |
---|---|
10 h Erhitzen.; |
Conditions | Yield |
---|---|
With lithium diisopropyl amide In tetrahydrofuran at -78℃; |
4-butanolide
acetaldehyde
ethyl acetate
3-acetyl-2-oxo-4,5-dihydrofuran
Conditions | Yield |
---|---|
With sodium carbonate at 44 - 80℃; for 8.66667h; Temperature; Autoclave; |
Conditions | Yield |
---|---|
With hydrogenchloride; indium In methanol; water for 10h; Ambient temperature; | 100% |
Conditions | Yield |
---|---|
With hydrogenchloride; indium In methanol; water for 10h; Ambient temperature; | 100% |
With tin In hydrogenchloride; methanol for 20h; Product distribution; Ambient temperature; other reagent, solvent, reaction time; also with allyl bromide; | 90% |
3-acetyl-2-oxo-4,5-dihydrofuran
chloro-trimethyl-silane
4-<1-(trimethylsiloxy)ethenyl>-5-(trimethylsiloxy)-2,3-dihydrofuran
Conditions | Yield |
---|---|
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With chlorine at -10℃; for 5h; Temperature; Saturated gas; | 99.3% |
With sulfuryl dichloride at 5 - 10℃; for 3h; | 99.1% |
With chlorine In dichloromethane at -10℃; for 5h; Temperature; Reagent/catalyst; Flow reactor; | 99% |
3-acetyl-2-oxo-4,5-dihydrofuran
α-acetyl-α-hydroxy-γ-butyrolactone
Conditions | Yield |
---|---|
With 3,3-dimethyldioxirane; nickel diacetate In water; acetone for 3.5h; Ambient temperature; | 99% |
With 3,3-dimethyldioxirane In acetone at 20℃; for 72h; | 98% |
With samarium (III) iodide; iodine In tetrahydrofuran; water at 25℃; for 12h; Catalytic behavior; Green chemistry; | 95% |
3-acetyl-2-oxo-4,5-dihydrofuran
methyl vinyl ketone
3-acetyl-3-(3-oxobutyl)-4,5-dihydrofuran-2(3H)-one
Conditions | Yield |
---|---|
With silica gel In neat (no solvent) at 0 - 90℃; for 20h; Michael Addition; | 99% |
NDEAP grafted on silica In water at 80℃; for 0.233333h; Michael addition; microwave irradiation; | 84% |
With iron(III) chloride In dichloromethane at 20℃; Michael reaction; | 36% |
Conditions | Yield |
---|---|
With silica gel at 20℃; for 2h; | 99% |
With β‐cyclodextrin In water at 20℃; for 1.5h; chemospecific reaction; | 96% |
With cerium(III) chloride; tetrabutylammomium bromide at 20℃; for 0.0833333h; | 95% |
Conditions | Yield |
---|---|
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃; | 99% |
With triethylamine In benzene at 20℃; for 14h; Etherification; |
Conditions | Yield |
---|---|
With silica gel at 20℃; for 3.5h; | 99% |
at 23℃; for 4h; | 89% |
Conditions | Yield |
---|---|
With silica gel at 20℃; for 4h; | 99% |
3-acetyl-2-oxo-4,5-dihydrofuran
Conditions | Yield |
---|---|
With ammonia; silica gel at 20℃; for 5h; | 99% |
With ammonium acetate; tetraethoxy orthosilicate In ethanol Heating; | 98% |
3-acetyl-2-oxo-4,5-dihydrofuran
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In toluene at 25℃; for 16h; | 99% |
With boron trifluoride diethyl etherate In toluene at 25℃; for 24h; | 99% |
Conditions | Yield |
---|---|
With 1-[3,5-bis(trifluoromethyl)phenyl]-3-[(2S)-dimethylamino-(1S)-phenylpropyl]thiourea In diethyl ether at 0℃; for 17h; nitro-Michael reaction; enantioselective reaction; | 99% |
With 3-((3,5-bis(trifluoromethyl)benzyl)amino)-4-((2-(dimethylamino)ethyl)-amino)cyclobut-3-ene-1,2-dione In toluene at 25℃; for 24h; Michael Addition; Inert atmosphere; | 87% |
(3ξ,8α,9R)-cinchonan-6',9-diol In tetrahydrofuran at 20℃; for 0.5h; Product distribution / selectivity; Michael Condensation; | |
With 1,4-diaza-bicyclo[2.2.2]octane In dichloromethane at 20℃; Michael Addition; | |
With 1,4-diaza-bicyclo[2.2.2]octane In neat (no solvent) at 20℃; Michael Addition; |
Conditions | Yield |
---|---|
In ethanol at 20℃; for 24h; | 99% |
3-acetyl-2-oxo-4,5-dihydrofuran
Conditions | Yield |
---|---|
With chlorine at 25 - 45℃; under 760.051 - 1520.1 Torr; for 2h; Temperature; Pressure; Concentration; | 98.6% |
3-acetyl-2-oxo-4,5-dihydrofuran
C12H12N2O3
Conditions | Yield |
---|---|
In tetrahydrofuran for 0.1h; Ambient temperature; | 98% |
3-acetyl-2-oxo-4,5-dihydrofuran
(-)-syn-(3R,1'R)-α-(hydroxyethyl)-γ-butyrolactone
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide under 375030 Torr; Ambient temperature; Saccharomyces cerevisiae ML29; | 98% |
In N,N-dimethyl-formamide at 26℃; for 24h; Yarrowia lipolytica Y5; | 95% |
With nicotinic acid; ammonium sulfate; potassium dihydrogenphosphate; 5-hydroxy-6-methyl-3,4-pyridinedimethanol; D-glucose; D-myo-inositol; vitamin B1; boric acid; calcium (R)-pantothenate; magnesium sulfate; copper(II) sulfate; zinc(II) sulfate; potassium iodide; calcium chloride; manganese(ll) chloride; iron(II) chloride; biotin In ethanol; water at 29℃; for 96h; Yarrowia lipolytica PFL9CE; | 69% |
3-acetyl-2-oxo-4,5-dihydrofuran
acrylic acid methyl ester
3-acetyl-2-oxotetrahydrofuran-3-propanoic acid methyl ester
Conditions | Yield |
---|---|
With polystyrene supported P1 iminophosphorane P-BEMP In tetrahydrofuran at 20℃; for 3h; Michael addition; | 98% |
With sodium hydride In tert-butyl alcohol at 35℃; for 4h; Michael addition; | 96% |
With 1,4-diaza-bicyclo[2.2.2]octane; water at 20℃; Michael addition; | 95% |
3-acetyl-2-oxo-4,5-dihydrofuran
4-chloro-aniline
3-[(Z)-1-(4-chloro-anilino)-ethylidene]-dihydro-furan-2-one
Conditions | Yield |
---|---|
With cerium(III) chloride; tetrabutylammomium bromide at 20℃; for 0.0833333h; | 98% |
With β‐cyclodextrin In water at 20℃; for 0.333333h; chemospecific reaction; | 95% |
With tris(trifluoroacetato)bismuth(III); tetrabutylammomium bromide at 20℃; for 0.0833333h; | 93% |
cerium(III) chloride In water at 20℃; for 0.0833333h; | 88% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In toluene for 12h; Heating; | 98% |
3-acetyl-2-oxo-4,5-dihydrofuran
3-amino-4,6-dimethylpyrazolo[3,4-b]pyridine
3-(2-hydroxyethyl)-2,8,10-trimethylpyrido[2',3':3,4]pyrazolo[1,5-a]pyrimidin-4-ol
Conditions | Yield |
---|---|
In diphenylether at 220 - 225℃; for 0.25h; | 98% |
Conditions | Yield |
---|---|
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; bis[2-(diphenylphosphino)phenyl] ether; ytterbium(III) triflate In 1,2-dichloro-ethane at 70℃; for 48h; Schlenk technique; Inert atmosphere; Glovebox; Sealed tube; diastereoselective reaction; | A 98% B n/a |
Conditions | Yield |
---|---|
With sodium iodide at 192℃; under 4500.45 Torr; Reagent/catalyst; Temperature; Pressure; | 97.12% |
Stage #1: 3-acetyl-2-oxo-4,5-dihydrofuran With hydrogenchloride In water at 100℃; for 2h; Stage #2: With sodium hydroxide In water at 80 - 100℃; for 2h; | 90.2% |
With 1-methyl-pyrrolidin-2-one; sodium iodide at 170℃; for 3h; | 59% |
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran Ambient temperature; | 96% |
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at -78 - -50℃; for 2h; domino Michael-O-alkylation; | 96% |
3-acetyl-2-oxo-4,5-dihydrofuran
p-toluidine
3-[(Z)-1-(4-toluidino)ethylidene]-dihydro-furan-2-one
Conditions | Yield |
---|---|
With β‐cyclodextrin In water at 20℃; for 1h; chemospecific reaction; | 96% |
ammonium cerium(IV) nitrate at 20℃; for 1.16667h; | 95% |
zirconium(IV) chloride at 20℃; for 0.5h; | 92% |
Conditions | Yield |
---|---|
With tris(trifluoroacetato)bismuth(III); tetrabutylammomium bromide at 20℃; for 0.166667h; | 96% |
With β‐cyclodextrin In water at 20℃; for 1.33333h; chemospecific reaction; | 95% |
With tris(trifluoroacetato)bismuth(III) In water at 20℃; for 10h; | 93% |
With cerium(III) chloride; tetrabutylammomium bromide at 20℃; for 0.0833333h; | 92% |
cerium(III) chloride In water at 20℃; for 0.166667h; | 85% |
3-acetyl-2-oxo-4,5-dihydrofuran
(E)-2-bromo-β-nitrostyrene
Conditions | Yield |
---|---|
With 3-((3,5-bis(trifluoromethyl)benzyl)amino)-4-((2-(dimethylamino)ethyl)-amino)cyclobut-3-ene-1,2-dione In toluene at 25℃; for 24h; Michael Addition; Inert atmosphere; | 96% |
3-acetyl-2-oxo-4,5-dihydrofuran
methyl iodide
3-acetyl-3-methyl-dihydro-furan-2-one
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 50℃; for 16h; Large scale; | 95% |
Stage #1: 3-acetyl-2-oxo-4,5-dihydrofuran With sodium methylate In benzene Stage #2: methyl iodide Further stages.; | 83% |
With potassium carbonate In acetone | 80% |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View