Products

Refine

Country

Business Type

Certificate

Display

Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

Coumalic acid Manufacturer/High quality/Best price/In stock

Cas:500-05-0

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Simagchem Corporation

Welcome 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

High quality Coumalicacid supplier in China

Cas:500-05-0

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

High Quality 99% 500-05-0 Coumalic acid (2-oxo-2H-pyran-5-carboxylic acid) Manufacturer

Cas:500-05-0

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

ADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,

Cumalic Acid

Cas:500-05-0

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

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

Coumalic acid

Cas:500-05-0

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With 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 manufacturin

Coumalic acid

Cas:500-05-0

Min.Order:1 Kilogram

FOB Price: $100.0 / 150.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Our 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

Coumalic acid 500-05-0

Cas:500-05-0

Min.Order:1 Metric Ton

FOB Price: $500.0

Type:Lab/Research institutions

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH 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

Manufacturer supply CAS 500-05-0 with best quality

Cas:500-05-0

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you 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 Specializ

2H-Pyran-5-carboxylicacid, 2-oxo-

Cas:500-05-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan 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

CAS NO.:500-05-0

Cas:500-05-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hubei CuiRan Biotechnology Co., Ltd

Hubei CuiRan Biotechnology Co., Ltd is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medicine)

coumalic acid

Cas:500-05-0

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

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

Coumalic acid

Cas:500-05-0

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company 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

COUMALIC ACID

Cas:500-05-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A 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

2-oxo-2H-pyran-5-carboxylic acid

Cas:500-05-0

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Ality Chemical Corporation

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

Factory Supply Coumalic acid

Cas:500-05-0

Min.Order:0 Metric Ton

Negotiable

Type:Other

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&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

2H-Pyran-5-carboxylicacid, 2-oxo-

Cas:500-05-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Dorne chemical technology co. LTD

Product 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,

High purity Coumalic acid

Cas:500-05-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

6-oxopyran-3-carboxylic acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

Coumalic acid cas no. 500-05-0 98%

Cas:500-05-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

Coumalic acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Other

inquiry

Lonwin Chemical Group Limited

Shanghai Lonwin Chemical company is a subsidiary of Lonwin Industry Group Limited, was established in 2011 and is headquartered in Shanghai, adjacent to China National Convention and Exhibition Center and Hongqiao transportation hub.Lonwinchem is

High Purity Coumalicacid 500-05-0

Cas:500-05-0

Min.Order:100 Kilogram

FOB Price: $100.0 / 150.0

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier

Coumalic acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec 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

Acmec Coumalic acid 100g

Cas:500-05-0

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

CouMalic Acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

Coumalicacid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

Coumalic acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

Coumalic acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hangzhou Huarong Pharm Co., Ltd.

High qualityAppearance:White powder Storage:Room temperature Package:Aluminum bag Application:Used in producing API Transportation:By air Port:Beijing

Coumalic Acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

CouMalic acid

Cas:500-05-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Guangdong Juda Chemical Industrial Co.,Limited

Appearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China

Coumalic acid CAS No.500-05-0

Cas:500-05-0

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

methyl coumalate
6018-41-3

methyl coumalate

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

Conditions
ConditionsYield
With iodine; aluminium In acetonitrile at 80℃; for 18h;90%
(S)-Malic acid
97-67-6

(S)-Malic acid

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

Conditions
ConditionsYield
With trifluorormethanesulfonic acid In 1,2-dichloro-ethane at 100℃; Reagent/catalyst; Temperature; Solvent; regioselective reaction;86%
malic acid
617-48-1

malic acid

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

Conditions
ConditionsYield
With sulfuric acid at 80 - 90℃; for 3h;85%
With sulfuric acid Heating;67%
Stage #1: malic acid With fuming sulphuric acid In sulfuric acid at 75℃; for 6h;
Stage #2: In ice-cold water at 10℃; for 24h;
65%
(S)-Malic acid
97-67-6

(S)-Malic acid

A

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

B

(2E)-but-2-enedioic acid
110-17-8

(2E)-but-2-enedioic acid

Conditions
ConditionsYield
With methanesulfonic acid In 1,2-dichloro-ethane at 100℃; Reagent/catalyst; Temperature; Solvent;A 14%
B 25%
(S)-Malic acid
97-67-6

(S)-Malic acid

(E)-3-Ureido-but-2-enoic acid ethyl ester
5435-44-9, 22243-66-9

(E)-3-Ureido-but-2-enoic acid ethyl ester

A

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

B

3-oxopropanoic acid
926-61-4

3-oxopropanoic acid

sodium formylacetic acid ester

sodium formylacetic acid ester

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

Conditions
ConditionsYield
With sulfuric acid
(S)-Malic acid
97-67-6

(S)-Malic acid

sulfuric acid
7664-93-9

sulfuric acid

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

methyl 4-carbomethoxy-5-methoxy-penta-2(E),4(Z)-dienoate
114106-77-3

methyl 4-carbomethoxy-5-methoxy-penta-2(E),4(Z)-dienoate

hydrogen bromide
10035-10-6, 12258-64-9

hydrogen bromide

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

4-formyl-pentenedioic acid dimethyl ester

4-formyl-pentenedioic acid dimethyl ester

hydrogen bromide
10035-10-6, 12258-64-9

hydrogen bromide

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

Conditions
ConditionsYield
Kochen;
sulfuric acid
7664-93-9

sulfuric acid

sodium 3-ethoxy-3-oxoprop-1-en-1-olate

sodium 3-ethoxy-3-oxoprop-1-en-1-olate

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

(S)-Malic acid
97-67-6

(S)-Malic acid

sulfuric acid
7664-93-9

sulfuric acid

A

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

B

3-oxopropanoic acid
926-61-4

3-oxopropanoic acid

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

ethene
74-85-1

ethene

C8H8O4

C8H8O4

Conditions
ConditionsYield
In 1,4-dioxane at 110℃; for 16h; Kinetics; Temperature; Diels-Alder Cycloaddition;98%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

6-oxo-tetrahydro-pyran-3-carboxylic acid
5807-38-5

6-oxo-tetrahydro-pyran-3-carboxylic acid

Conditions
ConditionsYield
With Raney nickel In methanol; toluene under 760.051 Torr; for 6h;96.8%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

S-(1-butyn-3-yl)-O-methyl xanthate

S-(1-butyn-3-yl)-O-methyl xanthate

methyl coumalate
6018-41-3

methyl coumalate

Conditions
ConditionsYield
In toluene Heating;92%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

trimethyl orthoformate
149-73-5

trimethyl orthoformate

A

methyl 4-carbomethoxy-5-methoxy-penta-2(E),4(Z)-dienoate
114106-77-3

methyl 4-carbomethoxy-5-methoxy-penta-2(E),4(Z)-dienoate

B

methyl 3,5-dimethoxy-4-carbomethoxypent-4-enoate
114106-78-4

methyl 3,5-dimethoxy-4-carbomethoxypent-4-enoate

Conditions
ConditionsYield
With sulfuric acid In methanol for 48h; Heating;A 89%
B 6%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

tenofovir disoproxil

tenofovir disoproxil

tenofovir disoproxil coumalate

tenofovir disoproxil coumalate

Conditions
ConditionsYield
In hexane; dichloromethane at 20 - 40℃; Solvent; Temperature;89%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

2-oxo-2H-pyran-5-carbonyl chloride
23090-18-8

2-oxo-2H-pyran-5-carbonyl chloride

Conditions
ConditionsYield
With phosphorus pentachloride at 60℃; for 1h;86%
With thionyl chloride at 100℃; for 8h;84%
With phosphorus pentachloride at 60℃; for 1h;80%
maleic anhydride
108-31-6

maleic anhydride

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

bicyclo<2.2.2>oct-2-en-2,5-exo,6exo,7exo,8exo-pentacarbonsaeure-5,6:7,8-dianhydrid
77802-48-3

bicyclo<2.2.2>oct-2-en-2,5-exo,6exo,7exo,8exo-pentacarbonsaeure-5,6:7,8-dianhydrid

Conditions
ConditionsYield
at 200℃;86%
at 200℃;65%
at 200℃; Heating;
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

ethanol
64-17-5

ethanol

2-Oxo-2H-pyran-5-carbonseaure-ethylester
5942-96-1

2-Oxo-2H-pyran-5-carbonseaure-ethylester

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 18h; Ambient temperature;86%
With trifluoromethylsulfonic anhydride; triethylamine; Triphenylphosphine oxide In 1,2-dichloro-ethane at 25℃; for 0.25h;78%
1-Heptene
592-76-7

1-Heptene

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

4-pentylbenzoic acid
26311-45-5

4-pentylbenzoic acid

Conditions
ConditionsYield
With palladium 10% on activated carbon In 1,3,5-trimethyl-benzene at 200℃; Diels-Alder reaction; regioselective reaction;85%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

2-(2-chloro-4-(4-chlorobenzoyl)-6-fluorophenoxy)acetohydrazide
1443038-08-1

2-(2-chloro-4-(4-chlorobenzoyl)-6-fluorophenoxy)acetohydrazide

[2-4-(4-chloro)benzoyl-2-chloro-6-fluorophenoxy]aceto-N(pyrone-2-one)carbonyl hydrazide

[2-4-(4-chloro)benzoyl-2-chloro-6-fluorophenoxy]aceto-N(pyrone-2-one)carbonyl hydrazide

Conditions
ConditionsYield
Stage #1: 2-(2-chloro-4-(4-chlorobenzoyl)-6-fluorophenoxy)acetohydrazide With 2,6-dimethylpyridine In dichloromethane at 25 - 30℃; for 0.5h;
Stage #2: 2H-pyran-2-one-5-carboxylic acid With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate In dichloromethane at 0 - 5℃; for 0.5h;
85%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

cyclopropanecarboxylic acid (3-amino-1H-pyrazolo[3,4-d]thiazol-5-yl)-amide, trifluoroacetic acid
937037-30-4

cyclopropanecarboxylic acid (3-amino-1H-pyrazolo[3,4-d]thiazol-5-yl)-amide, trifluoroacetic acid

1-[5-(cyclopropanecarbonyl-amino)-1H-pyrazolo[3,4-d]thiazol-3-yl]-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid

1-[5-(cyclopropanecarbonyl-amino)-1H-pyrazolo[3,4-d]thiazol-3-yl]-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid

Conditions
ConditionsYield
With pyridine at 20℃; for 8h;82%
methanol
67-56-1

methanol

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

methyl coumalate
6018-41-3

methyl coumalate

Conditions
ConditionsYield
for 3h; Reflux;81.8%
With sulfuric acid for 1h; Heating;55%
With sulfuric acid
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

2-(4-benzoylphenoxy)acetohydrazide
670221-21-3

2-(4-benzoylphenoxy)acetohydrazide

2-(4-benzoylphenoxy)aceto-N(pyrone-2-one)carbonylhydrazide

2-(4-benzoylphenoxy)aceto-N(pyrone-2-one)carbonylhydrazide

Conditions
ConditionsYield
Stage #1: 2-(4-benzoylphenoxy)acetohydrazide With 2,6-dimethylpyridine In dichloromethane at 25 - 30℃; for 0.5h;
Stage #2: 2H-pyran-2-one-5-carboxylic acid With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate In dichloromethane at 0 - 5℃; for 0.5h;
81%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

C6H3ClO4

C6H3ClO4

Conditions
ConditionsYield
80%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

tetrakis[bis(trimethylsilyl)methyl]digallane(4)
125370-09-4

tetrakis[bis(trimethylsilyl)methyl]digallane(4)

Ga2(CH(SiMe3)2)2(2-oxo-2H-pyran-5-carboxylate)2
1258211-75-4

Ga2(CH(SiMe3)2)2(2-oxo-2H-pyran-5-carboxylate)2

Conditions
ConditionsYield
In tetrahydrofuran digallium compd. and acid suspended in THF at room temp.; suspn. stirred at room temp. for 16 h; volatiles removed in vacuo; residue washed with n-pentane;79%
allylbenzene
300-57-2

allylbenzene

2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

4-Benzylbenzoic acid
620-86-0

4-Benzylbenzoic acid

Conditions
ConditionsYield
With palladium 10% on activated carbon In 1,3,5-trimethyl-benzene at 200℃; Diels-Alder reaction; regioselective reaction;79%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

2-[4-(4-methylbenzoyl)-2-chloro-6-fluorophenoxy]acethydrazide
1443038-11-6

2-[4-(4-methylbenzoyl)-2-chloro-6-fluorophenoxy]acethydrazide

[2-4(-4-methyl)benzoyl-2-chloro-6-fluorophenoxy]aceto-N-(pyrone-2-one)carbonylhydrazide

[2-4(-4-methyl)benzoyl-2-chloro-6-fluorophenoxy]aceto-N-(pyrone-2-one)carbonylhydrazide

Conditions
ConditionsYield
Stage #1: 2-[4-(4-methylbenzoyl)-2-chloro-6-fluorophenoxy]acethydrazide With 2,6-dimethylpyridine In dichloromethane at 25 - 30℃; for 0.5h;
Stage #2: 2H-pyran-2-one-5-carboxylic acid With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate In dichloromethane at 0 - 5℃; for 0.5h;
78%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

Dithiocarbonic acid O-[(3S,5S,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl] ester S-prop-2-ynyl ester
165452-00-6

Dithiocarbonic acid O-[(3S,5S,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl] ester S-prop-2-ynyl ester

6-Oxo-6H-pyran-3-carboxylic acid (3R,5S,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester

6-Oxo-6H-pyran-3-carboxylic acid (3R,5S,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester

Conditions
ConditionsYield
In toluene Heating;77%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

methyl coumalate
6018-41-3

methyl coumalate

Conditions
ConditionsYield
In tetrahydrofuran; diethyl ether at 20℃; for 3h;76.4%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

A

5-bromo-2H-pyran-2-one
19978-33-7

5-bromo-2H-pyran-2-one

B

3,5-dibromo-2H-pyran-2-one
19978-41-7

3,5-dibromo-2H-pyran-2-one

Conditions
ConditionsYield
With N-Bromosuccinimide; lithium acetate; tetrabutylammomium bromide In tetrachloromethane; acetonitrile at 65℃;A n/a
B 76%
With N-Bromosuccinimide; lithium acetate In water; acetonitrile at 20℃; for 72h; Product distribution; Further Variations:; Reaction partners; reagents ratios; Hundsdiecker reaction;A 35%
B 15%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

1-Decene
872-05-9

1-Decene

4-octylbenzoic acid
3575-31-3

4-octylbenzoic acid

Conditions
ConditionsYield
With palladium 10% on activated carbon In 1,3,5-trimethyl-benzene at 200℃; Diels-Alder reaction; regioselective reaction;72%
With palladium on activated charcoal In 1,3,5-trimethyl-benzene at 200℃; Diels-Alder Cycloaddition; Sealed tube;72%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

[2-chloro-6-fluoro-4-(4-fluoro-benzoyl)-phenoxy]acetic acid hydrazide
1443038-07-0

[2-chloro-6-fluoro-4-(4-fluoro-benzoyl)-phenoxy]acetic acid hydrazide

[2-4-(4-fluoro)benzoyl-2-chloro-6-fluorophenoxy]aceto-N-(pyrone-2-one)carbonylhydrazide

[2-4-(4-fluoro)benzoyl-2-chloro-6-fluorophenoxy]aceto-N-(pyrone-2-one)carbonylhydrazide

Conditions
ConditionsYield
Stage #1: [2-chloro-6-fluoro-4-(4-fluoro-benzoyl)-phenoxy]acetic acid hydrazide With 2,6-dimethylpyridine In dichloromethane at 25 - 30℃; for 0.5h;
Stage #2: 2H-pyran-2-one-5-carboxylic acid With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate In dichloromethane at 0 - 5℃; for 0.5h;
72%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

1-methoxy-5,6,7,8-tetrafluorobenzobenzobarrelene
14111-43-4

1-methoxy-5,6,7,8-tetrafluorobenzobenzobarrelene

benzoic acid
65-85-0

benzoic acid

Conditions
ConditionsYield
In xylene at 200 - 205℃; for 4h; Product distribution; var. temp. and time;71%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

propene
187737-37-7

propene

A

p-Toluic acid
99-94-5

p-Toluic acid

B

m-Toluic acid
99-04-7

m-Toluic acid

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen; 5-methyl-dihydro-furan-2-one In toluene at 180℃; under 6723.1 Torr; for 8h; Reagent/catalyst; Solvent; Temperature; Time;A 70.8%
B 15.8%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

benzyl alcohol
100-51-6

benzyl alcohol

coumalic acid benzyl ester
61752-10-1

coumalic acid benzyl ester

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran; dichloromethane at 20℃; for 5h;70%
With 8-aminopyrene-1,3,6-trisulfonic acid, trisodium salt for 15h; Heating;
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

1-undecene
821-95-4

1-undecene

4-n-Nonylbenzoic acid
38289-46-2

4-n-Nonylbenzoic acid

Conditions
ConditionsYield
With palladium 10% on activated carbon In 1,3,5-trimethyl-benzene at 200℃; Diels-Alder reaction; regioselective reaction;69%
2H-pyran-2-one-5-carboxylic acid
500-05-0

2H-pyran-2-one-5-carboxylic acid

1-(allyloxy)heptane
16519-24-7

1-(allyloxy)heptane

4-((heptyloxy)methyl)benzoic acid
173265-17-3

4-((heptyloxy)methyl)benzoic acid

Conditions
ConditionsYield
With palladium 10% on activated carbon In 1,3,5-trimethyl-benzene at 200℃; Diels-Alder reaction; regioselective reaction;66%

Hot Products

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View