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:539-88-8
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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
Cas:539-88-8
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Colorless to pale yellow liquid Storage:cool dry place Package:25kg/drum;200kg/drum Application:food additive Tra
Cas:539-88-8
Min.Order:25 Kilogram
Negotiable
Type:Trading Company
inquirySleeping pills and stability.This product is white or white crystalline powder;Odourless and slightly bitter taste.Almost insoluble in water, soluble in hydrochloric acid.In acid or alkali and heat hydrolysis, oral drug under the action of gastric
high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai
The 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
Colorcom 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
Our 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:539-88-8
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryAbout Product Details
Cas:539-88-8
Min.Order:1 Kilogram
FOB Price: $1.0 / 2.0
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 on.O
Cas:539-88-8
Min.Order:1 Metric Ton
Negotiable
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
Cas:539-88-8
Min.Order:1 Kilogram
FOB Price: $15.0 / 50.0
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:539-88-8
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:539-88-8
Min.Order:10 Kilogram
Negotiable
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:539-88-8
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
inquiryWe are leading fine chemicals supplier in China and Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED intermediat
Cas:539-88-8
Min.Order:1 Kilogram
FOB Price: $4.0 / 5.0
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:White Crystalline Powder Storage:Store in sealed conta
We are one of the domestic largest manufacturers of API; We are always supplier of products with higher quality and at more competitive price; We are supplier of safe and ecofriendly products ; We provide stable supply and efficient servic
Cas:539-88-8
Min.Order:200 Kilogram
Negotiable
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:539-88-8
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:539-88-8
Min.Order:1 Kilogram
FOB Price: $20.0 / 25.0
Type:Trading Company
inquiryEthyl levulinate CAS:539-88-8 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 intermedi
Cas:539-88-8
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:539-88-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquirySuperiority Product Detail Minimum Order Qty.
Cas:539-88-8
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
Hangzhou 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:539-88-8
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
BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds. https:
Cas:539-88-8
Min.Order:1 Gram
Negotiable
Type:Trading Company
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:539-88-8
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:539-88-8
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquirySuperior quality Appearance:clear yellowish liquid Storage:Keep away of light,cool place Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Used as Pharmaceutical Intermediates Transportation:as per your request Port:Shangha
GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Conditions | Yield |
---|---|
With Zirconium Exchanged Phosphotungstic Acid at 120℃; for 2h; Temperature; | 100% |
With sulfuric acid for 16h; Reflux; | 100% |
With naphthalene; N,N,N-triethyl-N-butanesulfonic acid ammonium hydrogen sulfate at 140℃; for 0.5h; | 99% |
Conditions | Yield |
---|---|
With Amberlyst 15 at 140℃; for 5h; | 99% |
With naphthalene; N,N,N-triethyl-N-butanesulfonic acid ammonium hydrogen sulfate at 140℃; for 24h; | 85% |
With Amberlyst-15 at 120℃; | 74% |
Conditions | Yield |
---|---|
With MCM-41; amberlyst-15 In ethyl acetate at 15 - 80℃; for 5h; Temperature; Solvent; Reagent/catalyst; | 96.92% |
With tetrachloromethane; iron(III)-acetylacetonate at 70℃; | 95% |
With Amberlyst-15 at 120℃; | 95% |
Conditions | Yield |
---|---|
at 20 - 80℃; for 5h; Temperature; Reagent/catalyst; | 96.65% |
Conditions | Yield |
---|---|
With tungsten(VI) oxide In ethanol under 30003 Torr; for 2h; Reagent/catalyst; Autoclave; Inert atmosphere; Sealed tube; | 93.3% |
With sulphated alumina In ethanol at 200℃; for 3h; Catalytic behavior; Temperature; Reagent/catalyst; Time; | 80.6% |
With divinylbenzene polymer with acid ionic liquid In ethanol at 150℃; under 760.051 Torr; for 12h; Solvent; Inert atmosphere; | 75% |
2-Methoxy-2-methyl-cyclopropanecarboxylic acid ethyl ester
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With sulfuric acid In water; acetone for 2h; Ambient temperature; | 93% |
(2-furyl)methyl alcohol
ethanol
A
2-(ethoxymethyl)furan
B
4,5,5-triethoxypentan-2-one
C
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
at 110℃; for 2h; Temperature; Reagent/catalyst; Autoclave; Ionic liquid; | A n/a B n/a C 92% |
With hydrothermally treated graphene oxide (GO-HT) at 120℃; for 6h; Autoclave; | A 38.8% B 11.7% C 39.7% |
5-hydroxymethyl-2-furfuraldehyde
ethanol
A
5-(ethoxymethyl)furfural
B
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With dual acidic Glu-TsOH-Ti catalyst at 90℃; for 6h; Reagent/catalyst; | A 91% B n/a |
With mesoporous silica Z-SBA-15 catalyst at 140℃; for 5h; | A 76% B 23% |
With partially reduced graphene oxide (S-RGO) at 140℃; for 24h; | A 71% B 22% |
1-tributylstannanyl-propan-2-one
ethyl bromoacetate
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide In benzene at 25℃; for 7h; | 90% |
In benzene for 1h; Ambient temperature; Irradiation; | 50% |
With bis-triphenylphosphine-palladium(II) chloride In tetrahydrofuran at 100℃; for 9h; | 41% |
(2-furyl)methyl alcohol
ethanol
A
diethyl ether
B
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
Amberlyst 15 at 125℃; for 1.16667h; Conversion of starting material; | A 4% B 89% |
Amberlyst 46 at 125℃; for 0.55 - 1.1h; Conversion of starting material; | A 0.4% B 68% |
Amberlyst 36 at 125℃; for 0.533333 - 1.11667h; Conversion of starting material; | A 1.2% B 60% |
Purolite MN500 at 125℃; for 0.883333 - 1.16667h; Conversion of starting material; | A 0.4% B 38% |
Conditions | Yield |
---|---|
With multi-walled carbon nanotubes/PTFE-supported Candida antarctica lipase B In toluene for 2h; Green chemistry; Enzymatic reaction; | 85% |
lithium carbonate at 100℃; under 41404.1 Torr; for 3h; Product distribution / selectivity; | |
potassium carbonate at 100℃; under 41404.1 Torr; for 3h; Product distribution / selectivity; |
Conditions | Yield |
---|---|
at 160℃; for 0.5h; Sealed vessel; | 85% |
at 160℃; for 0.5h; sealed tube; | 84.7% |
Conditions | Yield |
---|---|
With poly(p-styrenesulfonic acid)-grafted carbon nanotubes at 120℃; for 24h; Reagent/catalyst; Sealed tube; Green chemistry; chemoselective reaction; | 84% |
With 3-methyl-1-(4-sulfobutyl)imidazol-3-ium bis((trifluoromethyl)sulfonyl)azanide; naphthalene at 140℃; | 77% |
With sulfated zirconia In glycerol at 210℃; for 4h; | 47.46% |
With H-beta 19 at 150 - 160℃; under 15001.5 Torr; for 20h; Reagent/catalyst; Pressure; Autoclave; Inert atmosphere; | 48 %Chromat. |
Conditions | Yield |
---|---|
Stage #1: diiodomethane With diethylzinc; trifluoroacetic acid In dichloromethane for 0.5h; Stage #2: ethyl acetoacetate In dichloromethane at 20℃; for 4h; | 81% |
5-hydroxymethyl-2-furfuraldehyde
ethanol
A
5-(ethoxymethyl)furfural
B
4-oxopentanoic acid ethyl ester
C
formic acid ethyl ester
Conditions | Yield |
---|---|
With sulfuric acid at 75℃; for 24h; Reagent/catalyst; Temperature; Sealed tube; | A 81% B 16% C n/a |
ethanol
2,3,4,5,6-pentahydroxy-hexanal
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With tin(IV) oxide at 180℃; for 3h; Temperature; Reagent/catalyst; | 81% |
Conditions | Yield |
---|---|
With 3C12H30N2O6S2(2+)*2O40PW12(3-) at 120℃; for 12h; Reagent/catalyst; | 80% |
With propylsulfonic acid functionalized phenyl bridged organosilicacore/ silica shell structured nanosphere-2 at 140℃; for 4h; Reagent/catalyst; Autoclave; | |
With per-rhenic acid at 160℃; for 16h; Reagent/catalyst; Concentration; Temperature; Time; Schlenk technique; | 80 %Spectr. |
(2-furyl)methyl alcohol
ethanol
A
2-(ethoxymethyl)furan
B
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With sulfonic acid-functionalized MIL-101(Cr) at 140℃; for 2h; Temperature; Reagent/catalyst; Autoclave; | A n/a B 79.2% |
With hierarchical-HZ-5 at 99.84℃; for 4h; Catalytic behavior; Green chemistry; | A 26% B 73% |
With hierarchical-HZ-5 at 99.84℃; for 4h; Catalytic behavior; Green chemistry; | A 49% B 41% |
D-Fructose
ethanol
A
5-(ethoxymethyl)furfural
B
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With poly(p-styrenesulfonic acid)-grafted carbon nanotubes at 100℃; for 12h; Sealed tube; Green chemistry; chemoselective reaction; | A n/a B 79% |
With dual acidic Glu-TsOH-Ti catalyst at 120℃; for 30h; | A 66% B 18% |
In hexane at 100℃; for 1.33333h; Ionic liquid; Sealed tube; Green chemistry; | A 54% B 6% |
ethanol
levulinic acid
A
5-methyl-5H-furan-2-one
B
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With tin modified silicotungstic acid/Ta2O5 at 70℃; for 3h; Catalytic behavior; Reagent/catalyst; | A n/a B 78% |
Conditions | Yield |
---|---|
With 5-isopropyl-2-methylbenzenesulfonic acid In Isopropylbenzene at 50℃; for 20h; | 76% |
With Amberlyst-15 at 77℃; for 23h; Reagent/catalyst; | 75% |
With H-ZSM-5 | |
With amberlyst36 at 75℃; for 3h; Inert atmosphere; | 65.8 %Chromat. |
1-tributylstannanyl-propan-2-one
chloroacetic acid ethyl ester
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide In benzene at 25℃; for 24h; | 75% |
1-tributylstannanyl-propan-2-one
ethyl iodoacetae
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
In benzene for 1h; Ambient temperature; Irradiation; | 74% |
5-bromomethyl-furan-2-carbaldehyde
ethanol
A
5-(ethoxymethyl)furfural
B
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With calcium carbonate for 1h; Reflux; | A 74% B 6% |
In water at 70℃; for 0.5h; Overall yield = 98 %; |
D-fructose
ethanol
A
5-hydroxymethyl-2-furfuraldehyde
B
5-(ethoxymethyl)furfural
C
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With SO3H-CD carbon In tetrahydrofuran at 120℃; for 6h; Catalytic behavior; Temperature; Time; Solvent; Reagent/catalyst; Sonication; | A n/a B 74% C n/a |
With alkaline lignin acidic carbonaceous catalyst at 110℃; for 15h; Sealed tube; | A 7.4% B 55.9% C 8.1% |
With sulfuric acid at 110℃; for 15h; Sealed tube; | A 8.4% B 49.8% C 7.3% |
Conditions | Yield |
---|---|
With divinylbenzene polymer with acid ionic liquid In ethanol at 150℃; under 760.051 Torr; for 12h; Solvent; Inert atmosphere; | 73% |
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With niobium pentachloride | 72% |
5-hydroxymethyl-2-furfuraldehyde
ethanol
A
2-(diethoxymethyl)-5-(ethoxymethyl)furan
B
5-(ethoxymethyl)furfural
C
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With Amberlyst-15 resin at 110℃; Sealed tube; | A 10% B 71% C 16% |
With partially reduced graphene oxide (S-RGO) at 140℃; for 24h; Reagent/catalyst; Temperature; | A 12% B 58% C 30% |
With Amberlyst-15 resin at 75℃; for 24h; Sealed tube; | A 27% B 52% C 8% |
Conditions | Yield |
---|---|
With titanium(IV) oxide at 150℃; under 15001.5 Torr; for 3h; Inert atmosphere; Green chemistry; | 71% |
ethyl 3-(chloroformyl)propionate
methylmagnesium bromide
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
Stage #1: methylmagnesium bromide With tributylphosphine In tetrahydrofuran at 20℃; Stage #2: ethyl 3-(chloroformyl)propionate In tetrahydrofuran at -40℃; for 0.333333h; | 70% |
4-oxopentanoic acid ethyl ester
ethyl (S)-4-hydroxypentanoate
Conditions | Yield |
---|---|
With magnesium chloride In isopropyl alcohol at 25℃; pH=7; Catalytic behavior; | 100% |
With asymmetric dehydrogenase enzyme; NADPH4 at 20℃; for 24h; pH=6.8 - 7.2; Inert atmosphere; Enzymatic reaction; enantioselective reaction; | 74% |
With recombinant alcohol dehydrogenase from Stenotrophomonas maltophilia SmADH2; isopropyl alcohol; NADH In aq. phosphate buffer at 30℃; pH=7; Green chemistry; Enzymatic reaction; stereoselective reaction; | n/a |
1,2-bis (triethylsilyloxy) ethane
4-oxopentanoic acid ethyl ester
Ethyl levulinate ethylene ketal
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at -78℃; for 4.5h; | 100% |
cyclopenta-1,3-diene
4-oxopentanoic acid ethyl ester
ethyl 4-(2,4-cyclopentadien-1-ylidene)valerate
Conditions | Yield |
---|---|
Stage #1: cyclopenta-1,3-diene; 4-oxopentanoic acid ethyl ester With pyrrolidine In methanol at 20℃; Inert atmosphere; Stage #2: With acetic acid In methanol for 0.15h; | 100% |
4-oxopentanoic acid ethyl ester
aniline
5-methyl-1-phenylpyrrolidin-2-one
Conditions | Yield |
---|---|
With platinum doped titanium oxide; hydrogen In neat (no solvent) at 150℃; under 3750.38 Torr; for 18h; Time; Temperature; Pressure; chemoselective reaction; | 100% |
With platinum doped titanium oxide; hydrogen In neat (no solvent) at 450℃; under 7500.75 Torr; Kinetics; Reagent/catalyst; Calcination; chemoselective reaction; | |
Multi-step reaction with 2 steps 1: / neat (no solvent) / Green chemistry 2: hydrogen; / neat (no solvent) / 12 h / 85 °C / 760.05 Torr / Green chemistry View Scheme |
Conditions | Yield |
---|---|
Stage #1: 4-oxopentanoic acid ethyl ester; adenosine With hydrogenchloride; orthoformic acid triethyl ester In 1,4-dioxane; N,N-dimethyl-formamide at 20℃; Stage #2: With calf intestine adenosine deaminase In water; glycerol at 20℃; for 72h; Enzymatic reaction; | 100% |
propylene glycol
4-oxopentanoic acid ethyl ester
2,4-dimethyl-1,3-dioxolane-2-propionic acid ethyl ester
Conditions | Yield |
---|---|
sulfuric acid In water at 95 - 106℃; under 30 - 80 Torr; Product distribution / selectivity; | 99.8% |
With sulfuric acid at 110 - 170℃; under 10 - 15 Torr; |
ethanolamine
4-oxopentanoic acid ethyl ester
(7aRS)-5-oxo-7a-methyl-2,3,5,6,7,7a-hexahydropyrrolo<2,1-b>oxazole
Conditions | Yield |
---|---|
With 3 A molecular sieve In methanol for 48h; Ambient temperature; | 99% |
In toluene Heating; | 53% |
With potassium carbonate In toluene for 36h; Heating; | 40% |
In toluene at 110℃; for 24h; |
Conditions | Yield |
---|---|
With iron(II) triflate; formic acid; tris(2-diphenylphosphinoethyl)phosphine In 1,4-dioxane at 140℃; for 24h; Reagent/catalyst; Temperature; | 99% |
With hydrogen In ethanol at 200℃; under 45004.5 Torr; for 6h; Reagent/catalyst; Temperature; Pressure; Solvent; Time; Autoclave; | 99% |
With formic acid; triphenylphosphine In tetrahydrofuran at 160℃; for 8h; | 99% |
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With L-proline In dimethyl sulfoxide at 20℃; for 168h; Mannich Aminomethylation; enantioselective reaction; | 99% |
ethylene glycol
4-oxopentanoic acid ethyl ester
Ethyl levulinate ethylene ketal
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In benzene for 18h; Heating; | 98% |
With toluene-4-sulfonic acid In benzene Inert atmosphere; | 98% |
Stage #1: ethylene glycol With toluene-4-sulfonic acid In benzene for 1h; Reflux; Dean-Stark; Inert atmosphere; Stage #2: 4-oxopentanoic acid ethyl ester In benzene for 18h; Reflux; Dean-Stark; Inert atmosphere; | 98% |
Conditions | Yield |
---|---|
With methanol; sodium tetrahydroborate In tetrahydrofuran at 0 - 5℃; for 2h; | 98% |
With sodium tetrahydroborate In tetrahydrofuran; water | 95% |
With nickel at 100℃; under 88260.9 Torr; Hydrogenation; |
Conditions | Yield |
---|---|
With platinum doped titanium oxide; hydrogen In neat (no solvent) at 120℃; under 7500.75 Torr; for 2h; chemoselective reaction; | 98% |
With platinum on carbon; hydrogen In methanol at 25℃; for 10h; | 93% |
Multi-step reaction with 2 steps 1: / neat (no solvent) / Green chemistry 2: hydrogen; / neat (no solvent) / 12 h / 85 °C / 760.05 Torr / Green chemistry View Scheme |
4-oxopentanoic acid ethyl ester
2,2-Dimethyl-1,3-propanediol
3-(2,5,5-trimethyl-[1,3]dioxan-2-yl)-propionic acid ethyl ester
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; orthoformic acid triethyl ester In dichloromethane at 20℃; for 19h; Inert atmosphere; | 98% |
With toluene-4-sulfonic acid; orthoformic acid triethyl ester In dichloromethane Inert atmosphere; | 98% |
Conditions | Yield |
---|---|
With hydrogen In hexane at 180℃; for 4h; Temperature; Reagent/catalyst; Solvent; Autoclave; | 98% |
Multi-step reaction with 2 steps 1: hydrogen / 1,4-dioxane / 2 h / 190 °C / 30003 Torr / Autoclave 2: hydrogen / 1,4-dioxane / 5 h / 190 °C / 30003 Torr / Autoclave View Scheme | |
Multi-step reaction with 2 steps 1: hydrogen / 1,4-dioxane / 2 h / 190 °C / 30003 Torr / Autoclave 2: hydrogen / 1,4-dioxane / 5 h / 190 °C / 30003 Torr / Autoclave View Scheme |
4-oxopentanoic acid ethyl ester
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; orthoformic acid triethyl ester for 5h; | 97% |
N-(4-methoxyphenyl)-N-[1-(2-phenylethyl)-piperidin-4-yl]-hydrazine
4-oxopentanoic acid ethyl ester
C27H37N3O3
Conditions | Yield |
---|---|
With acetic acid In toluene Reflux; | 96.1% |
N-[1-(2-phenylethyl)-piperidin-4-yl]-N-phenyl-hydrazine
4-oxopentanoic acid ethyl ester
C26H35N3O2
Conditions | Yield |
---|---|
With acetic acid In toluene Reflux; | 95.2% |
Conditions | Yield |
---|---|
With hydrogen; 5%-palladium/activated carbon at 25 - 150℃; under 4657.97 Torr; for 1h; Product distribution / selectivity; | 95.01% |
Conditions | Yield |
---|---|
Stage #1: 4-oxopentanoic acid ethyl ester With cesium hydroxide; phenylsilane In 2-methyltetrahydrofuran at 25℃; for 6h; Green chemistry; Stage #2: With ethanol In 2-methyltetrahydrofuran at 80℃; for 2h; Kinetics; Green chemistry; chemoselective reaction; | 95% |
With copper chromite at 250℃; under 147102 Torr; Hydrogenation; | |
With lithium aluminium tetrahydride In diethyl ether |
3-(tetrahydropyran-2'-yloxy)propyne
4-oxopentanoic acid ethyl ester
(5R*S*) 5-methyl-5-<3-<(tetrahydro-2H-pyran-2-yl)oxy>prop-1-ynyl> dihydrofuran-2-(3H)-one
Conditions | Yield |
---|---|
With hydrogenchloride; n-butyllithium In tetrahydrofuran; hexane 1.) RT, 30 min; 2.) -20 deg C, 15 h; 3.) 0 deg C; | 95% |
With n-butyllithium; chloro-trimethyl-silane 1) THF, hexane, -78 deg C, 15 min then RT, 1 h, 2) THF, hexane, -78 deg C then -78 deg C to RT, 1 h, 3) THF, hexane, -78 deg C to RT, 20 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With ammonium acetate In neat (no solvent) at 55℃; for 2.5h; Green chemistry; | 95% |
Conditions | Yield |
---|---|
With platinum doped titanium oxide; hydrogen In neat (no solvent) at 120℃; under 7500.75 Torr; for 2h; chemoselective reaction; | 94% |
With palladium on activated charcoal; ethanol at 60℃; Hydrogenation.Beim 6-taegigen Hydrieren; | |
Multi-step reaction with 2 steps 1: / neat (no solvent) / Green chemistry 2: hydrogen; / neat (no solvent) / 12 h / 85 °C / 760.05 Torr / Green chemistry View Scheme |
n-butyl magnesium bromide
4-oxopentanoic acid ethyl ester
dihydro-5-butyl-5-methyl-2-(3H)-furanone
Conditions | Yield |
---|---|
In diethyl ether; benzene at -5 - 0℃; for 0.25h; | 94% |
With diethyl ether; benzene |
4-oxopentanoic acid ethyl ester
orthoformic acid triethyl ester
ethyl 4,4-diethoxypentanoate
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In ethanol at 145℃; under 3750.38 Torr; for 2h; | 94% |
With sulfuric acid |
4-oxopentanoic acid ethyl ester
orthoformic acid triethyl ester
A
ethyl 4,4-diethoxypentanoate
B
formic acid ethyl ester
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In ethanol at 145℃; ketalization; | A 94% B n/a |
Conditions | Yield |
---|---|
With ammonium acetate In neat (no solvent) at 55℃; for 3h; Green chemistry; | 94% |
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