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
Cas:40834-42-2
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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:40834-42-2
Min.Order:1 Gram
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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 services. DayangChem can provide different quantities of custom synthesis ch
Cas:40834-42-2
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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:40834-42-2
Min.Order:5 Kiloliter
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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:40834-42-2
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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:40834-42-2
Min.Order:1 Kilogram
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Type:Trading Company
inquiry5-HYDROXY-4-METHYL-2(5H)FURANONE CAS:40834-42-2 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
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Min.Order:1 Gram
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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:40834-42-2
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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
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inquiryCompany Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
Cas:40834-42-2
Min.Order:1 Gram
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:40834-42-2
Min.Order:4 Kilogram
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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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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:40834-42-2
Min.Order:1 Gram
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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:40834-42-2
Min.Order:10 Gram
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Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:White crystalline powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:10g/bag,or as your request Application:For medicine , pesticide interm
Cas:40834-42-2
Min.Order:1 Gram
Negotiable
Type:Trading Company
inquiryOur company was built in 2009 with an ISO certificate.In the past 6 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:40834-42-2
Min.Order:1 Kilogram
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inquiryProduct name: 3-Methyl-4-Hydroxy Butenolide CAS No.: 40834-42-2 Molecule Formula:C5H6O3 Molecule Weight:114.10 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TESTING ITEMS
Cas:40834-42-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:40834-42-2
Min.Order:1 Kilogram
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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,
Cas:40834-42-2
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiry5-HYDROXY-4-METHYL-2(5H)FURANONE Chemical Properties Boiling point 113 °C(Press: 0.05 Torr) density 1.349±0.06 g/cm3(Predicted) storage temp. Sealed in dry,2-8°C pka 10.04±0.40(Predicted) CAS DataBase Reference
Cas:40834-42-2
Min.Order:1 Gram
FOB Price: $66.0
Type:Lab/Research institutions
inquiryHunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as
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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:40834-42-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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 and h
High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
Cas:40834-42-2
Min.Order:0
Negotiable
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inquiryLuyunjia Chemistry Xiamen Limited is a high-tech company specializing in R&D and manufacturing of photoinitiators monomers and oligomers, UV absorbers and pharmaceutical intermediates, and pharmaceutical intermediates of generic drug. and has a h
Cas:40834-42-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryISO/factory/goodqualityAppearance:off white Storage:Dry,cool place Package:drum Application:active pharmaceutical ingredients Transportation:by air/sea/express Port:shenzhen/shanghai
high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
Cas:40834-42-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirywith high qualityAppearance:white powder Storage:Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Package:25kg/drum Application:as intermediates Transportation:by courier, air or sea Port:At any port from China
Cas:40834-42-2
Min.Order:0
Negotiable
Type:Manufacturers
inquiryAcmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:40834-42-2
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryethyl (E/Z)-4,4-dimethoxy-3-methylbut-2-enoate
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With hydrogenchloride; iodine for 3h; Heating; | 100% |
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With amberlyst-15; water Ambient temperature; | 81% |
Conditions | Yield |
---|---|
With morpholine; hydrogenchloride In water at 20℃; for 13h; Reflux; | 76% |
With morpholine In 1,4-dioxane; water | |
Stage #1: Glyoxilic acid With morpholine In n-heptane; water at 0 - 20℃; Stage #2: propionaldehyde In n-heptane; water at 20 - 45℃; Stage #3: With hydrogenchloride In n-heptane; water at 20℃; |
propionaldehyde
2,2-dihydroxyacetic acid
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With morpholin hydrochloride In 1,4-dioxane; water 1) RT, 1 h, 2) 24 h, reflux; | 76% |
citraconic acid anhydride
A
5-Hydroxy-3-methyl-5H-furan-2-one
B
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With lithium tri-t-butoxyaluminum hydride In tetrahydrofuran at -30 - -15℃; for 3h; Inert atmosphere; | A 7% B 60% |
citraconic acid anhydride
A
5-hydroxy-4-methyl-5H-furan-2-one
B
4-methyl-2(5H)-furanone
C
3-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With sodium tetrahydroborate In tetrahydrofuran THF, 0 deg C, 45 min; room temperature, 45 min; | A 5% B 43% C 5% |
γ-morpholinobutenolide
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With hydrogenchloride for 0.25h; Heating; Yield given; |
2-ethoxy-3-methyl-2H-furan-5-one
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With hydrogenchloride for 0.25h; Heating; Yield given; |
L-menthyl glyoxylate
(E)-1-(N-morpholino)propene
A
5-hydroxy-4-methyl-5H-furan-2-one
B
(E)-3-Methyl-4-oxo-but-2-enoic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester
Conditions | Yield |
---|---|
With sulfuric acid; toluene-4-sulfonic acid Multistep reaction. Yields of byproduct given; | |
With sulfuric acid; toluene-4-sulfonic acid Yield given. Multistep reaction; |
4-methyl-2-(triisopropyl)silyloxy-furan
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 78 percent / dimethyldioxirane / acetone; CH2Cl2 2: 81 percent / H2O, Amberlyst-15 / Ambient temperature View Scheme |
1,1-diethoxypropane
morpholin hydrochloride
glyoxalic acid monohydrate
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane; aqueous sodium chloride; ethyl acetate |
5-hydroxy-4-methyl-5H-furan-2-one
(Z)-3-Methyl-4-oxo-but-2-enoic acid ethyl ester
Conditions | Yield |
---|---|
With sodium hydride | 95% |
5-hydroxy-4-methyl-5H-furan-2-one
thiophenol
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In toluene at 80℃; for 15h; | 90% |
5-hydroxy-4-methyl-5H-furan-2-one
3-(triphenylphosphoranylidene)butan-2-one
4-Methyl-5-(1-methyl-2-oxo-propyl)-5H-furan-2-one
Conditions | Yield |
---|---|
In toluene Heating; | 85% |
5-hydroxy-4-methyl-5H-furan-2-one
methyl iodide
methyl (Z)-3-methyl-4-oxo-2-butenoate
Conditions | Yield |
---|---|
With sodium hydride In N,N,N,N,N,N-hexamethylphosphoric triamide | 85% |
With sodium hydride 1.) HMPA, 0 deg C, 1 h, 2.) 20 min; Yield given. Multistep reaction; |
5-hydroxy-4-methyl-5H-furan-2-one
triethylsilyl chloride
5-triethylsilyloxy-4-methyl-2(5H)-furanone
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 0℃; for 1h; | 82% |
5-hydroxy-4-methyl-5H-furan-2-one
3-methyl-5,6-diaza-2,4-cyclohexadien-1-one
Conditions | Yield |
---|---|
With hydrazine In tetrahydrofuran at 20 - 60℃; | 80% |
With hydrazine In tetrahydrofuran at 20 - 60℃; | 80% |
Multi-step reaction with 4 steps 1: tetrahydrofuran / 4 h / Heating 2: conc. HCl / 0.25 h / Heating 3: HCl(g) / 12 h / Heating 4: 60 percent / H2N-NH2*H2O / aq. ethanol / 3 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: HCl(g) / 12 h / Heating 2: 60 percent / H2N-NH2*H2O / aq. ethanol / 3 h / Heating View Scheme |
3-amino-5-tert-butylisoxazole
5-hydroxy-4-methyl-5H-furan-2-one
Conditions | Yield |
---|---|
In toluene for 8h; Reflux; | 71% |
5-hydroxy-4-methyl-5H-furan-2-one
benzyl alcohol
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In 1,4-dioxane; toluene for 5h; Heating; | 70% |
5-hydroxy-4-methyl-5H-furan-2-one
benzylamine
1-benzyl-4-methyl-1,5-dihydro-2H-pyrrol-2-one
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-4-methyl-5H-furan-2-one; benzylamine In isopropyl alcohol at 40℃; for 1h; Stage #2: With sodium tetrahydroborate; sodium hydroxide In water; isopropyl alcohol at 0 - 25℃; for 1.5h; Stage #3: With acetic acid at 50℃; for 16h; pH=7-8; | 69% |
5-hydroxy-4-methyl-5H-furan-2-one
5-chloro-4-(trifluoromethyl)pyridin-2-amine
Conditions | Yield |
---|---|
In toluene for 16h; Reflux; | 68% |
5-hydroxy-4-methyl-5H-furan-2-one
t-butyldimethylsiyl triflate
5-tert-butyldimethylsilyloxy-4-methyl-2(5H)-furanone
Conditions | Yield |
---|---|
With 2,6-dimethylpyridine In dichloromethane at 0℃; for 2h; | 64% |
5-hydroxy-4-methyl-5H-furan-2-one
trichloroacetonitrile
3-methyl-5-oxo-2,5-dihydrofuran-2-yl 2,2,2-trichloroacetimidate
Conditions | Yield |
---|---|
With sodium hydride In dichloromethane at 20℃; for 4h; | 63% |
5-hydroxy-4-methyl-5H-furan-2-one
4-methoxy-benzylamine
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-4-methyl-5H-furan-2-one; 4-methoxy-benzylamine In isopropyl alcohol at 40℃; for 1h; Stage #2: With sodium tetrahydroborate; sodium hydroxide In water; isopropyl alcohol at 0 - 25℃; for 1.5h; Stage #3: With acetic acid In water; isopropyl alcohol at 50℃; for 16h; pH=7-8; | 63% |
5-hydroxy-4-methyl-5H-furan-2-one
[13C]methyl iodide
Conditions | Yield |
---|---|
Stage #1: [13C]methyl iodide With magnesium In diethyl ether at 40℃; for 1h; Inert atmosphere; Stage #2: 5-hydroxy-4-methyl-5H-furan-2-one In diethyl ether at 0 - 20℃; | 57% |
vinyl acetate
5-hydroxy-4-methyl-5H-furan-2-one
(-)-5-(R)-acetoxy-4-methyl-2(5H)-furanone
Conditions | Yield |
---|---|
With lipase R immobilized on Hyflo Super Cell In diethyl ether for 240h; Ambient temperature; | 52% |
5-hydroxy-4-methyl-5H-furan-2-one
(-)-menthol
A
5-menthyloxy-4-methyl-2<5H>-furanone
B
(5S)-5-(l-menthyloxy)-4-methyl-2(5H)-furanone
Conditions | Yield |
---|---|
A 39% B n/a | |
at 120℃; for 72h; Yield given. Yields of byproduct given; | |
at 120℃; for 72h; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
5-hydroxy-4-methyl-5H-furan-2-one
(2E)-3-phenyl-2-propen-1-ol
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid for 24h; Heating; | 34% |
(E)-5-(furan-3-yl)-2-methylpent-2-en-1-ol
5-hydroxy-4-methyl-5H-furan-2-one
ursinanolide
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In dichloromethane for 72h; Ambient temperature; | 27% |
5-hydroxy-4-methyl-5H-furan-2-one
Z-(3,7-dimethylocta-2,6-dienyl)diphenylphosphine oxide
2Z,4Z,6Z-3,7,11-trimethyldideca-2,4,6,10-tetraenoic acid
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran for 3h; | 10% |
5-hydroxy-4-methyl-5H-furan-2-one
E-(3,7-dimethylocta-2,6-dienyl)diphenylphosphine oxide
2Z,4E,6E-3,7,11-trimethyldideca-2,4,6,10-tetraenoic acid
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran | 7% |
5-hydroxy-4-methyl-5H-furan-2-one
Methyl diethylphosphonoacetate
(2Z,4E)-5-methoxycarbonyl-3-methyl-2,4-petadienone acid
Conditions | Yield |
---|---|
With sodium methylate In methanol; diethyl ether |
5-hydroxy-4-methyl-5H-furan-2-one
cyclohex-1-enylmethyl-triphenyl-phosphonium; bromide
(2Z,4E)-5-Cyclohex-1-enyl-3-methyl-penta-2,4-dienoic acid
Conditions | Yield |
---|---|
(i) PhLi, (ii) /BRN= 1561665/; Multistep reaction; |
5-hydroxy-4-methyl-5H-furan-2-one
triphenyl((2,6,6-trimethylcyclohex-1-enyl)methyl)phosphonium bromide
(2Z,4E)-3-methyl-5-(2',6',6'-trimethylcyclohex-1'-en-1'-yl)-2,4-pentadienoic acid
Conditions | Yield |
---|---|
(i) PhLi, (ii) /BRN= 1561665/; Multistep reaction; |
5-hydroxy-4-methyl-5H-furan-2-one
trans-β-formyl crotonic acid
Conditions | Yield |
---|---|
With sodium methylate In methanol |
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