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:675-10-5
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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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inquiry4-Hydroxy-6-methyl-2-pyrone CAS 675-10-5 triacetate lactone CAS no 675-10-5 3,5-Dihydroxysorbic acid delta-lactone 4-Hydroxy-6-methyl-2-pyrone triacetate lactone 3,5-Dihydroxysorbic acid delta-lactone 4-Hydroxy-6-methyl-2-pyroneCAS 675-10-5
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inquiryOur advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
Cas:675-10-5
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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
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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
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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
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inquiryAbout Product Details Items Specifications Test Results Appearance White to white crystalline powde
Cas:675-10-5
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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
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inquiry4-Hydroxy-6-methyl-2-pyrone CAS:675-10-5 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 organi
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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
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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
Our 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
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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:675-10-5
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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
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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
Cas:675-10-5
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inquiryWhy Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu
Zibo 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:675-10-5
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inquiryHot Sale High Purity 4-Hydroxy-6-methyl-2-pyrone with factory priceAppearance:white powder Storage:Store in dry, dark and ventilated place Package:according to customers' requirements Application:Pharmaceutical Intermediates / Active Pharmaceutical I
Cas:675-10-5
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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:675-10-5
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inquirySuperior quality, moderate price & quick delivery. Appearance:white crystals Storage:Sealed and stored Package:25kg/drum Application:Synthetic chemical hybridizing agents and antibiotics cefpiramide Transportation:as per your request Port:Shang
Product name: 4-Hydroxy-6-Methyl-2-Pyrone CAS No.:675-10-5 Molecule Formula:C6H6O3 Molecule Weight:126.11 Purity: 98.0% Package: 25kg/drum Description:White crystalline powder Manufacture Standards:Enterprise Standard
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inquiryGMP 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,
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inquiry4-Hydroxy-6-methyl-2-pyrone Chemical Properties Melting point 188-190 °C (dec.) (lit.) Boiling point 174.21°C (rough estimate) density 1.2048 (rough estimate) refractive index 1.4189 (estimate) storage temp. Keep in dark p
Cas:675-10-5
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inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:675-10-5
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inquiryWe Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O
Shandong Mopai Biotechnology 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 chemicals. W
Cas:675-10-5
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inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:675-10-5
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inquiryLocated in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service an
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Conditions | Yield |
---|---|
With sulfuric acid In water at 130℃; for 0.216667h; Flow reactor; | 96% |
With sulfuric acid at 130℃; for 0.25h; | 90% |
With sulfuric acid at 130℃; for 0.25h; Cooling with ice; | 89% |
Conditions | Yield |
---|---|
With trifluoroacetic acid; trifluoroacetic anhydride for 0.5h; Heating; | 94% |
With 1,1'-carbonyldiimidazole In diethyl ether at 0℃; for 2h; Yield given; |
2,2-dimethyl-6-(2-oxo-2-methylethyl)-4H-1,3-dioxin-4-one
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
In toluene at 100℃; for 0.5h; | 92% |
In toluene for 0.166667h; Heating; | 66% |
In toluene Reflux; |
2,2-dimethyl-5-(1-hydroxy-3-oxobutylidene)-1,3-dioxane-4,6-dione
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
In 1,4-dioxane for 2h; Heating; | 89% |
3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one
A
4-hydroxy-6-methyl-2-pyron
B
2,6-dimethyl-4-oxopyran-3-carboxylic acid
Conditions | Yield |
---|---|
With sulfuric acid In water at 130℃; for 0.25h; Temperature; Flow reactor; | A 81% B 6 %Spectr. |
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran for 0.5h; Ambient temperature; | 80% |
2,2-dimethyl-5-(3-oxobutanoyl)-1,3-dioxane-4,6-dione
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
In toluene Heating; | 76% |
1-styrenyloxytrimethylsilane
malonoyl dichloride
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
67% |
isopropenyl isopropyl ether
malonoyl dichloride
A
4-hydroxy-6-methyl-2-pyron
B
Phloroglucinmonoisopropylether
Conditions | Yield |
---|---|
In diethyl ether | A 24% B 65% |
With potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride 1) Et2O, -19 deg C, 2 h, 2) Et2O, r.t., 4 h; Yield given. Multistep reaction. Yields of byproduct given; |
Conditions | Yield |
---|---|
In sulfuric acid; water at 120℃; for 1.5h; Deacetylation; | 60% |
acetic anhydride
A
4-hydroxy-6-methyl-2-pyron
B
N-(5-methyl-[1,3,4]thiadiazol-2-yl)-N-phenyl-acetamide
Conditions | Yield |
---|---|
With zinc(II) chloride at 23 - 25℃; for 72h; | A 30% B 57% |
acetic anhydride
3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one thiosemicarbazone
A
4-hydroxy-6-methyl-2-pyron
B
N-(5-methyl-1,3,4-thiadiazol-2-yl)acetamide
Conditions | Yield |
---|---|
for 0.166667h; Heating; | A 50% B 55% |
Conditions | Yield |
---|---|
With zinc(II) chloride at 23 - 25℃; for 45h; | A n/a B 54% |
propionic acid anhydride
3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one thiosemicarbazone
A
N-(5-methyl-1,3,4-thiadiazol-2-yl)-propionamide
B
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
at 120 - 130℃; for 0.25h; | A 53% B 45% |
2-Methoxypropene
malonoyl dichloride
A
4-hydroxy-6-methyl-2-pyron
B
5-methoxyresorcinol
Conditions | Yield |
---|---|
In diethyl ether | A 43% B 52% |
With potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride 1) Et2O, -19 deg C, 2 h, 2) Et2O, r.t., 4 h; Yield given. Multistep reaction. Yields of byproduct given; |
A
4-hydroxy-6-methyl-2-pyron
B
3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one
C
5-methyl-N-phenyl-1,3,4-thiadiazol-2-amine
Conditions | Yield |
---|---|
In ethanol; acetic acid for 2.41667h; Heating; | A 20% B n/a C 44% |
2-ethoxyprop-1-ene
malonoyl dichloride
A
4-hydroxy-6-methyl-2-pyron
B
Phloroglucinmonoethylether
Conditions | Yield |
---|---|
In diethyl ether | A 42% B 43% |
With potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride 1) Et2O, -19 deg C, 2 h, 2) Et2O, r.t., 4 h; Yield given. Multistep reaction. Yields of byproduct given; |
3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one
A
4-hydroxy-6-methyl-2-pyron
B
3,5-dioxohexanoic acid methyl ester
C
acetoacetic acid methyl ester
Conditions | Yield |
---|---|
With sodium methylate In methanol; benzene for 18h; Heating; | A 7% B 18% C 16% |
phenyldiazomethane
4-methoxy-6-(phenylthiomethyl)-2H-pyran-2-one
A
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
Multistep reaction. Yields of byproduct given; |
3,5-dioxohexanoic acid methyl ester
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
With sulfuric acid at 80℃; |
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
With hydrogenchloride | |
With potassium hydroxide |
acetylcoenzyme A
S-(hydrogen malonyl)coenzyme A
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
With 6-hydroxymellein synthase from carrot root cells; sodium chloride; Coenzyme A; NADPH In water at 37℃; pH=6.0; Enzyme kinetics; Further Variations:; Reagents; pH-values; | |
With 2-pyrone synthase |
S-acetyl coenzyme A
A
4-hydroxy-6-methyl-2-pyron
B
4-hydroxy-6-(2-oxopropyl)pyran-2-one
Conditions | Yield |
---|---|
With type III polyketide synthase RppA from S. griseus; 2-hydroxyethanethiol In various solvent(s) at 37℃; for 2h; pH=7.5; | A 1 % Turnov. B 5 % Turnov. |
2,7-dimethyl-4H-pyrano<3,2-c>-2H-pyran-4,5-dione
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 52 percent / MeONa / benzene / 18 h / Heating 2: conc. H2SO4 / 80 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1.) butyl-lithium, di-isopropylamine / 1.) THF, hexane, -78 deg C, 30 min; 2.) THF, hexane, up to RT 2: 94 percent / trifluoroacetic acid, trifluoroacetic anhydride / 0.5 h / Heating View Scheme |
acetylacetone enol
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: N,N'-carbonyldiimidazole (CDI) / diethyl ether / 2 h / 0 °C View Scheme |
acetylcoenzyme A
S-(hydrogen malonyl)coenzyme A
B
4-hydroxy-6-methyl-2-pyron
C
4-hydroxy-6-(2-oxopropyl)pyran-2-one
D
4-hydroxy-6-(2',4'-dioxo-pentyl)-pyrone
Conditions | Yield |
---|---|
Stage #1: acetylcoenzyme A; S-(hydrogen malonyl)coenzyme A With recombinant N-His-tagged hexaketide synthase of Drosophyllum lusitanicum Link at 30℃; for 1h; pH=7.0; aq. buffer; Enzymatic reaction; Stage #2: Acidic aq. solution; |
S-(hydrogen malonyl)coenzyme A
A
4-hydroxy-6-methyl-2-pyron
B
(E)-4-hydroxy-6-(prop-1-en-1-yl)-2H-pyran-2-one
C
C10H10O3
D
1,3E,5E,7E,9E,11E,13E-pentadecaheptaene
E
C12H12O3
F
(3E,5E,7E,9E,11E,13E)-pentadeca-3,5,7,9,11,13-hexaen-2-one
G
3-oxohexadeca-4,6,8,10,12,14-hexaenoic acid
Conditions | Yield |
---|---|
With calicheamicin polyketide synthase CalE8; calicheamicin thioesterase CalE7; NADPH In glycerol at 24℃; for 2h; pH=7; aq. phosphate buffer; Enzymatic reaction; |
6-(2-hydroxypropyl)-2,2-dimethyl-4H-1,3-dioxin-4-one
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Dess-Martin periodane / 20 °C 2: toluene / Reflux View Scheme | |
Multi-step reaction with 2 steps 1: Dess-Martin periodane / dichloromethane / 1.5 h / 20 °C 2: toluene / 0.5 h / 100 °C View Scheme |
4-hydroxy-6-methyl-2-pyron
acetic acid
3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In toluene Reflux; | 100% |
With dmap; dicyclohexyl-carbodiimide In toluene at 100℃; for 2h; | 86.4% |
With dmap; dicyclohexyl-carbodiimide In toluene at 20 - 100℃; |
4-hydroxy-6-methyl-2-pyron
4-hydroxy-6-methyl-tetrahydro-2H-pyran-2-one
Conditions | Yield |
---|---|
palladium 10% on activated carbon In butan-1-ol at 49.84℃; under 15514.9 Torr; for 8h; Product distribution / selectivity; | 99.4% |
4-hydroxy-6-methyl-2-pyron
4-methoxy-benzaldehyde
3,3’-(4-methoxyphenyl)methylenebis(4-hydroxy-6-methyl-2H-pyran-2-one)
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene at 20℃; for 9h; | 99% |
With nano Fe3O4 supported carbamoylsulfamic acid functionalized on organosilicate In neat (no solvent) at 100℃; for 1h; Reagent/catalyst; Green chemistry; | 96% |
With piperidine; acetic acid In ethanol at 60℃; for 2.5h; | 95% |
4-hydroxy-6-methyl-2-pyron
acetaldehyde
1,1-bis(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)ethane
Conditions | Yield |
---|---|
With piperidine; acetic acid In ethanol for 24h; Ambient temperature; | 99% |
In chloroform at 40℃; for 16h; | 60% |
4-hydroxy-6-methyl-2-pyron
1-cyclohexene-1-carboxaldehyde
3-Methyl-1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyran
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; | 99% |
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; regioselective reaction; | 99% |
With L-proline In ethyl acetate at 70℃; for 24h; | 76% |
Conditions | Yield |
---|---|
With potassium carbonate In various solvent(s) for 8h; Methylation; Heating; | 99% |
4-hydroxy-6-methyl-2-pyron
trans-Crotonaldehyde
2,7-dimethyl-2H,5H-pyrano<3,2-c>pyran-5-one
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; regioselective reaction; | 99% |
With piperidine; acetic anhydride In ethyl acetate at -10 - 85℃; | 66% |
Stage #1: trans-Crotonaldehyde With piperidine; acetic anhydride In ethyl acetate at -10 - 85℃; Stage #2: 4-hydroxy-6-methyl-2-pyron In ethyl acetate at 85℃; Further stages.; | 66% |
With piperdinium acetate; sodium sulfate In ethyl acetate at 80 - 90℃; for 18h; |
4-hydroxy-6-methyl-2-pyron
3,3-dimethyl acrylaldehyde
2,2,7-trimethyl-2H-pyrano[4,3-b]pyran-5-one
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; | 99% |
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; regioselective reaction; | 99% |
In neat (no solvent) at 20 - 120℃; for 10h; Microwave irradiation; Green chemistry; | 94% |
Conditions | Yield |
---|---|
With Trametes versicolor laccase; oxygen In acetate buffer at 20℃; for 3.5h; pH=4.37; | 99% |
With laccase from Trametes versicolor at 20℃; for 3h; pH=4.4; aq. acetate buffer; Enzymatic reaction; regioselective reaction; | 99% |
With sodium acetate; potassium hexacyanoferrate(III) In water | 80% |
With sodium acetate In water Electrochemical reaction; | 67% |
4-hydroxy-6-methyl-2-pyron
crotonaldehyde
2,7-dimethyl-2H,5H-pyrano<3,2-c>pyran-5-one
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; | 99% |
With 4 A molecular sieve In dichloromethane | 53% |
4-hydroxy-6-methyl-2-pyron
benzenesulfenyl chloride
4-hydroxy-6-methyl-3-(phenylsulfanyl)-2H-pyran-2-one
Conditions | Yield |
---|---|
With hydrogenchloride In benzene | 99% |
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; | 99% |
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; regioselective reaction; | 99% |
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; | 99% |
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; regioselective reaction; | 99% |
4-hydroxy-6-methyl-2-pyron
3,5-Dibromosalicylaldehyde
6,8-dibromo-3-acetoacetylcoumarin
Conditions | Yield |
---|---|
With 1-n-butyl-3-methylimidazolim bromide at 90℃; for 4h; | 99% |
4-hydroxy-6-methyl-2-pyron
2-octen-1-al
C14H18O3
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; regioselective reaction; | 99% |
4-hydroxy-6-methyl-2-pyron
methyl benzylidenepyruvate
Conditions | Yield |
---|---|
With C29H29F6N3OS In diethyl ether at 20℃; for 1h; Michael addition; optical yield given as %ee; enantioselective reaction; | 99% |
4-hydroxy-6-methyl-2-pyron
methyl (E)-2-oxo-4-(4-chlorophenyl)but-3-enoate
Conditions | Yield |
---|---|
With C29H29F6N3OS In diethyl ether at 20℃; for 1h; Michael addition; optical yield given as %ee; enantioselective reaction; | 99% |
2-aminopyridine
4-hydroxy-6-methyl-2-pyron
pyrimidine-2,4,5,6(1H,3H)-tetraone
2-aminopyridinium 3-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-6-methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ide
Conditions | Yield |
---|---|
In chloroform for 5h; Reflux; | 99% |
2-aminopyridine
4-hydroxy-6-methyl-2-pyron
1,3-dimethylalloxan
2-aminopyridinium 3-(5-hydroxy-1,3-dimethyl-2,4,6-trioxohexahydropyrimidin-5-yl)-6-methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ide
Conditions | Yield |
---|---|
In chloroform for 18h; Reflux; | 99% |
(5-methyl-pyridin-2-yl)amine
4-hydroxy-6-methyl-2-pyron
pyrimidine-2,4,5,6(1H,3H)-tetraone
2-amino-5-methylpyridinium 3-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-6-methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ide
Conditions | Yield |
---|---|
In chloroform for 5h; Reflux; | 99% |
3-methylpyridin-2-ylamine
4-hydroxy-6-methyl-2-pyron
pyrimidine-2,4,5,6(1H,3H)-tetraone
2-amino-3-methylpyridinium 3-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-6-methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ide
Conditions | Yield |
---|---|
In chloroform for 3h; Reflux; | 99% |
4-hydroxy-6-methyl-2-pyron
(R/S)-1,2-Butandiol-1-<(4-methylbenzol)sulfonat>
4-[1-(4-toluenesulfonyloxy)but-2-yloxy]-6-methyl-2-pyrone
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In dichloromethane at 0 - 25℃; Mitsunobu Displacement; Inert atmosphere; | 99% |
Conditions | Yield |
---|---|
With pyrrolidine; benzoic acid In tetrahydrofuran at 30℃; for 5h; Schlenk technique; Inert atmosphere; | 99% |
4-hydroxy-6-methyl-2-pyron
Conditions | Yield |
---|---|
With diphenyl hydrogen phosphate In dichloromethane at 20℃; for 2h; | 99% |
4-hydroxy-6-methyl-2-pyron
di-isopropyl azodicarboxylate
1-tert-butyldimethylsilyloxy-2-hydroxybutane
4-{1-[(tert-butyldimethylsilanyloxy)methyl]propoxy}-6-methyl-2-pyrone
Conditions | Yield |
---|---|
Stage #1: 4-hydroxy-6-methyl-2-pyron; 1-tert-butyldimethylsilyloxy-2-hydroxybutane With triphenylphosphine In tetrahydrofuran at 0℃; Inert atmosphere; Stage #2: di-isopropyl azodicarboxylate In tetrahydrofuran at 20℃; for 16h; Inert atmosphere; | 98.4% |
4-hydroxy-6-methyl-2-pyron
1-tert-butyldimethylsilyloxy-2-hydroxybutane
4-{1-[(tert-butyldimethylsilanyloxy)methyl]propoxy}-6-methyl-2-pyrone
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In dichloromethane at 0 - 25℃; Mitsunobu Displacement; Inert atmosphere; | 98.4% |
4-hydroxy-6-methyl-2-pyron
3-nitro-benzaldehyde
3,3'-((3-nitrophenyl)methylene)bis(4-hydroxy-6-methyl-2H-pyran-2-one)
Conditions | Yield |
---|---|
With nano Fe3O4 supported 2-carbamoylhydrazine-1-sulfonic acid functionalized on organosilicate In neat (no solvent) at 100℃; for 0.666667h; Reagent/catalyst; Green chemistry; | 98% |
With sodium dodecyl-sulfate In water at 90℃; for 6h; | 93% |
With Fe3O4(at)SiO2/(CH2)3-[imidazolium-SO3H]Cl at 90℃; for 0.416667h; Green chemistry; | 91% |
4-hydroxy-6-methyl-2-pyron
benzaldehyde
4,4'-dihydroxy-6,6'-dimethyl-3,3'-(phenylmethylene)bis(pyran)-2,2'-dione
Conditions | Yield |
---|---|
With piperidine; acetic acid In ethanol for 2h; | 98% |
With nano Fe3O4 supported carbamoylsulfamic acid functionalized on organosilicate In neat (no solvent) at 100℃; for 0.266667h; Catalytic behavior; Reagent/catalyst; Temperature; Time; Green chemistry; | 95% |
With Fe3O4(at)SiO2/(CH2)3-[imidazolium-SO3H]Cl at 90℃; for 0.25h; Green chemistry; | 94% |
4-hydroxy-6-methyl-2-pyron
salicylaldehyde
(1-(2-oxo-2H-chromen-3-yl)butane-1,3-dione)
Conditions | Yield |
---|---|
With 1-n-butyl-3-methylimidazolim bromide at 90℃; for 4h; | 98% |
With β‐cyclodextrin In water at 70℃; for 0.5h; Green chemistry; | 97% |
molecular sieve In ethanol for 0.166667h; Heating; | 89% |
4-hydroxy-6-methyl-2-pyron
benzylamine
(Z)-N-benzyl-5-(benzylamino)-3-oxohex-4-enamide
Conditions | Yield |
---|---|
In ethanol for 4h; Reflux; | 98% |
In methanol for 1h; Heating; 1/1 proportion; |
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