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:123-76-2
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryLevulinic acid Basic information Chemical Properties Uses Application Preparation Content analysis Toxicity Usage limit Product Name: Levulinic acid Synonyms: 2-Acetopropionicacid;aevuL;Levulinic acid 4-oxopentanoic acid;sodium 4-oxopentanoate;
Cas:123-76-2
Min.Order:1 Kilogram
Negotiable
Type:Other
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:123-76-2
Min.Order:1 Kilogram
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Type:Manufacturers
inquiryShandong Xinhua Pharmaceutical Company Limited ("Shandong Xinhua") is in an leading position in the manufacturing technology and capacity for antipyretics and analgesics in China and is an important manufacturer in China for the drugs
Cas:123-76-2
Min.Order:1000 Kilogram
Negotiable
Type:Manufacturers
inquiryItems Standard Result Appearance Colorless,transparent liquid Complies Content% ≥99.90
Cas:123-76-2
Min.Order:1 Kilogram
FOB Price: $3.0 / 10.0
Type:Manufacturers
inquiryProduct description: Product name Levulinic acid CAS number 123-76-2 Assay ≥99% Appearance Colorless liquid or white cystal Capacity 1000mt/year Application Pharmaceuticals,
Cas:123-76-2
Min.Order:1 Kilogram
FOB Price: $12.0
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 to light yellow transparent liquid or crystal Stora
Cas:123-76-2
Min.Order:25 Kilogram
FOB Price: $10.0 / 20.0
Type:Trading Company
inquiry1 Factory price 2 High quality 3 Good service 4 Prompt service Appearance:powder Storage:Kept in dry and cool place and from sunlight; Kept the packing intact. Package: 25kg plastic woven bag with inner linning. Application: Food, Beverages,
Cas:123-76-2
Min.Order:1 Metric Ton
FOB Price: $660.0 / 720.0
Type:Manufacturers
inquiryChemical Name: Levulinic acid / Acetylpropionic Acid Other name: 2-Acetopropionicacid;3-acetyl-propionicaci;3-Keto-n-velericacid;4-Keto-n-valericacid;4-Oxo-pentanoic acid (levulinic acid);4-oxo-pentanoicaci;4-oxovaleric;4-oxo-valericaci CAS: 12
Cas:123-76-2
Min.Order:1 Metric Ton
Negotiable
Type:Trading Company
inquiry1. 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:123-76-2
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:123-76-2
Min.Order:1 Kilogram
FOB Price: $1.0
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
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
Product Name: Levulinic acid Synonyms: 3-acetyl-propionicaci;3-Keto-n-velericacid;4-Keto-n-valericacid;4-Oxo-pentanoic acid (levulinic acid);4-oxo-pentanoicaci;4-oxovaleric;4-oxo-valericaci;4-Oxpentanoicacid CAS: 123-76-2 MF: C5H8O3 MW: 116.12
Cas:123-76-2
Min.Order:1 Kilogram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufactu
Cas:123-76-2
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
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:123-76-2
Min.Order:10 Gram
FOB Price: $146.0 / 176.0
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:123-76-2
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiryProduct name: Levulinic acid Molecular formula: C5H7O3 CAS NO.: 123-76-2 Appearance: Properties white flaky crystal, with water absorbability Appearance: white powder Storage:Store in cool and dry
Advantages: Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best service is
1.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:123-76-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Name: Levulinic acid CAS: 123-76-2 MF: C5H8O3 MW: 116.12 EINECS: 204-649-2 Mol File: 123-76-2.mol Levulinic acid Structure Levulinic acid Chemical Properties Melting point 30-33 °C (lit.) Boiling point 245-246
Methanesulfonic acid is a raw material for medicine and pesticide. It can also be used as dehydrating agent, curing accelerator for coating, treating agent for fiber, solvent, catalysis, and esterification as well as polymerization reaction. It c
Cas:123-76-2
Min.Order:1 Kilogram
FOB Price: $30.0 / 35.0
Type:Trading Company
inquiryBeluga chemical professional supply High quality Levulinic acid CAS 123-76-2 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research capabilities. 2. Made in China a
Cas:123-76-2
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
Minimum Order Qty. 10 Gram Supply Ability 500 Kilograms/Month Storage store in cool, dry, ventilated place 20℃ Delivery Time 3 business days after payment Payment Term TT,western union,Paypal,MoneyGram Package 10g,20g,50g,100g,500g,1KGS,
Cas:123-76-2
Min.Order:10 Gram
Negotiable
Type:Trading Company
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
Appearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:As customer request Port:Qingda
Cas:123-76-2
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryOur Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
Cas:123-76-2
Min.Order:1 Kilogram
FOB Price: $1.0 / 100000.0
Type:Lab/Research institutions
inquiryAdvantage 1: The product passed the professional production process and quality inspection, the purity is 99% +. 2: Highly qualified engineers to provide technical documents and service. 3: We could provide sample for your test. 4: High qualit
Cas:123-76-2
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:123-76-2
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
In water at 90℃; for 7h; Reagent/catalyst; Temperature; | 100% |
With [RhCl2(p-cymene)]2; water at 20℃; for 12h; | 92% |
gold(I) chloride In acetonitrile at 20℃; | 77% |
Conditions | Yield |
---|---|
With C4H11FeMo6NO24(3-)*3C16H36N(1+); water; oxygen; sodium carbonate at 50℃; under 760.051 Torr; for 8h; Green chemistry; | 99% |
With 4H3N*4H(1+)*CuMo6O18(OH)6(4-); water; oxygen; sodium carbonate at 50℃; under 760.051 Torr; for 12h; | 95% |
With silver(l) oxide |
Conditions | Yield |
---|---|
With sulfuric acid; water at 90℃; for 1h; Concentration; | 96% |
Conditions | Yield |
---|---|
With sulfuric acid In water at 100 - 120℃; for 3h; Temperature; Concentration; Flow reactor; | 94.83% |
With [1-(3-sulfonic acid)]propyl-3-methylimidazolium hydrogen sulfate In water at 170℃; for 5h; Autoclave; | 76.7% |
With Amberlyst-15 In 1,4-dioxane; water at 150℃; for 3h; Reagent/catalyst; Solvent; Time; | 71% |
5-methylenedihydrofuran-2-one
levulinic acid
Conditions | Yield |
---|---|
With Lewalit S 100 G1 In benzene for 6h; Ambient temperature; | 94% |
With dichlorobis(dimethyl sulfoxide)platinum(II) In water at 37℃; for 24h; |
Conditions | Yield |
---|---|
In potassium hydroxide at 30℃; electrolysis: nickel hydroxide electrode, 1.5-1.6 V; | 94% |
With tetraethylammonium bromide In N,N-dimethyl-formamide at 20℃; | 78% |
Conditions | Yield |
---|---|
With [1-(3-sulfonic acid)]propyl-3-methylimidazolium hydrogen sulfate In water at 170℃; for 5h; Autoclave; | 93.4% |
sulfuric acid In 2-sec-butylphenol; water at 150℃; for 1h; Product distribution / selectivity; | 90% |
With water at 155 - 160℃; im Autoklaven; |
Conditions | Yield |
---|---|
With hydrogenchloride for 2.5h; Heating; also by alkaline hydrolysis with 10percent aq. KOH; | 93% |
With hydrogenchloride | |
With hydrogenchloride at 90℃; for 4h; Yield given; |
Conditions | Yield |
---|---|
With hydrogenchloride; water at 190℃; for 0.333333h; Sealed vessel; | 93% |
With water at 190℃; for 0.333333h; sealed tube; | 91.2% |
5-(2-furaldehyde)methyl formate
levulinic acid
Conditions | Yield |
---|---|
In water at 120℃; for 4h; Sealed tube; | 92% |
Conditions | Yield |
---|---|
With dodecatungstophosphoric acid hydrate; 1-ethyl-3-methyl-1H-imidazol-3-ium chloride In water at 139.84℃; for 5h; Reagent/catalyst; | A 89% B n/a |
With water at 150℃; for 12h; Autoclave; | A 12% B 42% |
With 1-(3-sulfopropyl)pyridinium phosphotungstate; water at 150℃; under 15001.5 Torr; for 5h; Autoclave; Inert atmosphere; | A 32.9% B 18.1% |
Conditions | Yield |
---|---|
In water; iso-butanol at 180℃; Temperature; | A 10% B 89% |
With hydrogenchloride; water In 4-methyl-2-pentanone at 140℃; for 0.25h; | A 74% B n/a |
With hydrogenchloride; water In methanol at 140℃; for 1.33333h; | A 11% B 72% |
Conditions | Yield |
---|---|
With potassium permanganate; copper(II) sulfate In dichloromethane | A n/a B 87% |
With potassium permanganate; copper(II) sulfate In dichloromethane | A 21% B 32% |
5-chloromethylfurfural
A
5-hydroxymethyl-2-furfuraldehyde
B
levulinic acid
Conditions | Yield |
---|---|
With water for 0.00694444h; Reflux; | A 86% B 10% |
With water at 100℃; for 0.00833333h; | A 86.2% B 9.9% |
With water In tetrahydrofuran at 100℃; for 0.0416667h; | A 71% B 20% |
Conditions | Yield |
---|---|
With hydrogenchloride at 100℃; for 1h; | 86% |
methanol
2-hydroxy-3-methylcyclopent-2-en-1-one
A
methyl 4-carboxy-2-hydroxy-2-methylbutanoate
B
levulinic acid
Conditions | Yield |
---|---|
With oxygen; methylene blue at 0℃; for 15h; Irradiation; | A 85% B 10% |
Conditions | Yield |
---|---|
With formic acid; C32H34N2PRu(1+)*F6P(1-); water at 120℃; for 6h; Catalytic behavior; Reagent/catalyst; Time; Temperature; Autoclave; | 84% |
With formic acid; [Ru(η6-C6H6)Cl(N,N-ethylenediamine)]PF6 In water at 100℃; for 8h; Kinetics; Catalytic behavior; Reagent/catalyst; Concentration; Temperature; | 42% |
With formic acid; [Cp*Ir-(4,4’-dimethoxyl-2,2’-bipyridine)(OH2)][SO4] In aq. buffer at 120℃; under 7500.75 Torr; for 4h; pH=1; Catalytic behavior; Reagent/catalyst; Sealed tube; | 14% |
With formic acid; [(η6-benzene)RuCl(8-aminoquinoline)]Cl; water at 80℃; for 24h; Catalytic behavior; Kinetics; Time; Reagent/catalyst; Temperature; Green chemistry; |
Conditions | Yield |
---|---|
With hydrogenchloride; water at 199.84℃; for 0.166667h; Concentration; Temperature; Time; | A 83% B 43% |
With water at 185 - 205℃; for 0.420833h; Product distribution / selectivity; Acidic conditions; | A 82% B n/a |
With 5-methyl-dihydro-furan-2-one at 159.84℃; for 16h; | A 20% B 69% |
Conditions | Yield |
---|---|
With iron(III) sulfate hydrate; palladium dichloride In water; acetonitrile at 45℃; for 12h; Wacker Oxidation; Inert atmosphere; | 82% |
With palladium diacetate; Dess-Martin periodane In water; acetonitrile at 50℃; Wacker-Tsuji Olefin Oxidation; Inert atmosphere; | 75% |
4-oxopentanoic acid ethyl ester
A
Ethyl γ-hydroxyvalerate
B
levulinic acid
C
5-methyl-dihydro-furan-2-one
Conditions | Yield |
---|---|
With 3Pd-10Nb-500AC; hydrogen In water at 100℃; under 3750.38 Torr; for 5h; Reagent/catalyst; | A n/a B n/a C 81% |
alpha-D-glucopyranose
A
5-hydroxymethyl-2-furfuraldehyde
B
formic acid
C
levulinic acid
D
levoglucosan
Conditions | Yield |
---|---|
With 15 wtpercent phosphate impregnated titania In water; butan-1-ol at 175℃; under 22502.3 Torr; for 3h; Catalytic behavior; Temperature; Inert atmosphere; Autoclave; | A 81% B n/a C n/a D n/a |
Conditions | Yield |
---|---|
With potassium phosphate; carbon dioxide; CrH6Mo6O24(3-)*3H3N*3H(1+) In dimethyl sulfoxide at 80℃; under 750.075 Torr; for 24h; Green chemistry; | 81% |
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran; water Reflux; | 80% |
sulfuric acid In 2-sec-butylphenol; water at 125℃; for 3h; Product distribution / selectivity; | 76% |
With carbon dioxide In 2-methyltetrahydrofuran; water at 150℃; under 30003 Torr; for 15h; Autoclave; | 55% |
Conditions | Yield |
---|---|
With ozone | A 10% B 55% C 80% |
Conditions | Yield |
---|---|
In water at 250℃; for 1h; | 80% |
Conditions | Yield |
---|---|
With water; Dess-Martin periodane In dichloromethane for 0.25h; Ambient temperature; | 80% |
levoglucosenone
levulinic acid
Conditions | Yield |
---|---|
With sulfuric acid; water at 200℃; Product distribution; Further Variations:; Temperatures; various ratios of reagents; Hydrolysis; | 80% |
Multi-step reaction with 2 steps 1: sulfuric acid / water / 0.07 h / 130 °C / Green chemistry 2: sulfuric acid; water / 130 °C / Green chemistry View Scheme |
Conditions | Yield |
---|---|
With water; 2HO4P(2-)*Ti(4+)*H2O at 120℃; for 8h; Catalytic behavior; Temperature; | 80% |
With nickel(II) sulfate hexahydrate; 1-(4-sulfonic acid)butyl-3-methylimidazolium chloride In water at 155℃; for 5h; Reagent/catalyst; Autoclave; | 56.33% |
With hydrogenchloride; water at 130℃; for 2h; Reagent/catalyst; Autoclave; Green chemistry; |
Conditions | Yield |
---|---|
Stage #1: 2-morpholinopropanenitrile With sodium hydride In N,N-dimethyl-formamide at 0℃; for 0.5h; Stage #2: acrylic acid methyl ester In N,N-dimethyl-formamide at 0 - 20℃; | 78% |
5-hydroxymethyl-2-furfuraldehyde
A
1-hydroxyl-2,5-hexanedione
B
levulinic acid
Conditions | Yield |
---|---|
With palladium on activated charcoal; hydrogen In tetrahydrofuran; water at 80℃; under 37503.8 Torr; for 15h; Autoclave; | A 77% B n/a |
Conditions | Yield |
---|---|
With hydrogenchloride at 65℃; for 1.5h; Reagent/catalyst; | 100% |
With Amberlyst-15 at 110℃; for 0.5h; Reagent/catalyst; Sealed tube; Microwave irradiation; | 99.6% |
With sulfuric acid at 50℃; for 5h; | 99% |
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 gold-titanium dioxide; hydrogen at 200℃; under 37503.8 Torr; for 4h; Temperature; Reagent/catalyst; Microwave irradiation; | 100% |
With Λ(+)-tris(pentane-2,5-dionato)ruthenium; hydrogen; [2-((diphenylphospino)methyl)-2-methyl-1,3-propanediyl]bis[diphenylphosphine] at 160℃; under 75007.5 Torr; for 18h; Inert atmosphere; | 95% |
With tris(2,4-pentanedionato)ruthenium(III); hydrogen; [2-((diphenylphospino)methyl)-2-methyl-1,3-propanediyl]bis[diphenylphosphine] at 160℃; under 75007.5 Torr; for 18h; Inert atmosphere; Autoclave; | 95% |
Conditions | Yield |
---|---|
With formic acid; hydrogen; Ru/C at 149.84℃; under 26252.6 Torr; for 2h; Conversion of starting material; | 100% |
With ruthenium(IV) oxide hydrate; hydrogen In water at 24 - 50℃; under 3750.38 Torr; for 1.5h; Temperature; Reagent/catalyst; Pressure; | 100% |
With formic acid In methanol; water at 70℃; for 0.833333h; Temperature; Reagent/catalyst; Flow reactor; Green chemistry; | 100% |
levulinic acid
levulinic anhydride
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 0.0833333h; | 100% |
With dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃; | 100% |
With dicyclohexyl-carbodiimide In diethyl ether |
levulinic acid
5'-O-(4-4'-dimethoxytrityl)thymidine
5'-O-(4,4'-dimethoxytrityl)-3'-O-levulinoyl-2'-deoxythymidine
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 20℃; for 1.5h; | 100% |
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In 1,4-dioxane at 20℃; for 12h; | 99% |
With dmap; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide In 1,4-dioxane for 2.5h; | 98% |
levulinic acid
4-N-Benzoyl-2'-deoxy-5'-O-(4,4'-dimethoxytrityl)cytidine
(2R,3S,5R)-5-(4-benzamido-2-oxopyrimidin-1(2H)-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)tetrahydrofuran-3-yl-4-oxopentanoate
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran for 2h; | 100% |
With dmap; dicyclohexyl-carbodiimide In 1,4-dioxane for 1h; | |
With dmap; dicyclohexyl-carbodiimide In 1,4-dioxane at 25℃; for 3h; |
levulinic acid
1,3,4,6-tetra-O-acetyl-α-D-galactopyranoside
1,3,4,6-tetra-O-acetyl-2-O-levulinoyl-α-D-galactopyranose
Conditions | Yield |
---|---|
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane | 100% |
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane at 20℃; for 5h; | 93% |
With N,N'-dimethylaminopyridine; dicyclohexyl-carbodiimide In tetrahydrofuran for 4h; Ambient temperature; | 91% |
With 1,4-diaza-bicyclo[2.2.2]octane; 2-chloro-1-methyl-pyridinium iodide In 1,4-dioxane at 20℃; for 24h; | 91% |
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; | 77% |
levulinic acid
Conditions | Yield |
---|---|
With cesium hydroxide In methanol at 20℃; for 1h; Substitution; | 100% |
levulinic acid
γ-hydroxyvaleric acid
Conditions | Yield |
---|---|
With magnesium chloride In isopropyl alcohol at 25℃; pH=7; Catalytic behavior; | 100% |
With diisopinocampheylborane In tetrahydrofuran at 20℃; for 17h; | 83% |
Stage #1: levulinic acid With diisopinocampheylborane In tetrahydrofuran at 0℃; Stage #2: In tetrahydrofuran at 20℃; for 17h; Stage #3: With sodium hydroxide; dihydrogen peroxide In tetrahydrofuran Further stages.; | 82% |
With hydrogen; acetic acid In tetrahydrofuran under 67506.8 Torr; for 20h; Autoclave; | |
With hydrogen; C67H80IrNOP(1+)*C32H12BF24(1-); triethylamine In methanol at 65℃; for 24h; |
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In diethyl ether at 20℃; for 0.5h; | 100% |
levulinic acid
(3aS,6S,7R,7aR)-6-Benzyloxy-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-7-ol
benzyl 2-O-levulinyl-3,4-O-isopropylidene-β-L-arabinopyranoside
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 12h; | 100% |
levulinic acid
ethyl 2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl-(1->3)-4,6-O-benzylidene-2-O-levulinoyl-1-thio-β-D-glucopyranoside
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 20h; | 100% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 20h; | 100% |
levulinic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 1.5h; | 100% |
methyl 2-O-pivaloyl-3-O-benzyl-5-O-tert-butyldimethylsilyl-D-glucuronate di(ethylthio)acetal
levulinic acid
methyl 2-O-pivaloyl-3-O-benzyl-4-O-levulinoyl-5-O-tert-butyldimethylsilyl-D-glucuronate di(ethylthio)acetal
Conditions | Yield |
---|---|
With dmap; diisopropyl-carbodiimide In dichloromethane at 20℃; for 20h; | 100% |
2-O-pivaloyl-3-O-benzyl-5-O-triphenylmethyl-D-xylose di(ethylthio)acetal
levulinic acid
2-O-pivaloyl-3-O-benzyl-4-O-levulinoyl-5-O-triphenylmethyl-D-xylose di(ethylthio)acetal
Conditions | Yield |
---|---|
With dmap; diisopropyl-carbodiimide In dichloromethane at 20℃; for 4h; | 100% |
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide; dmap In dichloromethane | 100% |
Conditions | Yield |
---|---|
Stage #1: C27H32F2N2O15 With hydrogen; palladium In ethyl acetate for 2h; Stage #2: levulinic acid With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane | 100% |
(R)-4-benzyl-3-((2S,3R,4S,5R)-4,5-bis(benzyloxy)-6,6-bis(ethylthio)-3-hydroxy-2-(4-methoxybenzyloxy)hexanoyl)oxazolidin-2-one
levulinic acid
(R)-4-benzyl-3-((2S,3R,4S,5R)-3-levulinoxy-4,5-bis(benzyloxy)-6,6-bis(ethylthio)-2-(4-methoxybenzyloxy)hexanoyl)oxazolidin-2-one
Conditions | Yield |
---|---|
With dmap; diisopropyl-carbodiimide In dichloromethane at 20℃; for 18h; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With dmap; 2-chloro-1-dimethylaminopropane Inert atmosphere; | 100% |
phenyl 4,6-O-di(tert-butyl)silylidene-1,2-dideoxy-2-trichloroacetamido-1-thio-β-D-glucopyranoside
levulinic acid
phenyl 4,6-O-di(tert-butyl)silylidene-1,2-dideoxy-3-O-levulinoyl-2-trichloroacetamido-1-thio-β-D-glucopyranoside
Conditions | Yield |
---|---|
With dmap; diisopropyl-carbodiimide In dichloromethane at 0 - 20℃; | 100% |
5'-O-dimethoxytrityl-2'-O-tert-butyldimethylsilyl uridine
levulinic acid
5'-DMTr-2'-TBDMS-3'-levulinyl-uridine
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 20℃; for 18h; | 100% |
Stage #1: levulinic acid With dmap; dicyclohexyl-carbodiimide In tetrahydrofuran for 0.25h; Stage #2: 5'-O-dimethoxytrityl-2'-O-tert-butyldimethylsilyl uridine In tetrahydrofuran for 5h; | 87% |
levulinic acid
ethyl 4,6-O-benzylidene-1-thio-β-D-glucopyranoside
ethylthio 4,6-O-benzylidene-2,3-di-O-levulinyl-β-D-glucopyranoside
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0 - 20℃; for 3h; | 100% |
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 42℃; for 2h; | 95% |
(2-methyl-5-tert-butylphenyl) 2-O-benzoyl-4,6-O-benzylidene-1-thio-α-D-mannopyranoside
levulinic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 1h; Inert atmosphere; | 100% |
(2R,3S,4R,5S)-4-(tert-butyldiphenylsilyloxy)-2-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-5-(p-tolylthio)tetrahydrofuran-3-ol
levulinic acid
(2S,3S,4R,5S)-4-(tert-butyldiphenylsilyloxy)-2-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-5-(p-tolylthio)tetrahydrofuran-3-yl 4-oxopentanoate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide at 20℃; for 3h; Inert atmosphere; | 100% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 3h; | 95% |
levulinic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 5h; | 100% |
levulinic acid
allyl 4-O-benzyl-3-O-para-methoxybenzyl-α-L-rhamnopyranoside
allyl 4-O-benzyl-2-O-levulinoyl-3-O-p-methoxybenzyl-α-L-rhamnopyranoside
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 2h; Inert atmosphere; | 100% |
(1S,2R)-(1-methyl-2-phenyl-2-hydroxy)ethyltrimethylammonium iodide
levulinic acid
[(1R,2S)-N,N-dimethylephedrinium][levulinate]
Conditions | Yield |
---|---|
With Dowex Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; Inert atmosphere; | 100% |
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