Products

Refine

Country

Business Type

Certificate

Display

Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

Dehydroacetic Acid

Cas:520-45-6

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

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

Dehydroacetic acid

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance Off-white to pale yellow powder pale yellow powder Identification test

High purity Various Specifications Dehydroacetic acid CAS:520-45-6

Cas:520-45-6

Min.Order:1 Gram

FOB Price: $100.0 / 500.0

Type:Manufacturers

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 Dehydroacetic Acid supplier in China

Cas:520-45-6

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Jinan Finer Chemical Co., Ltd

Product description: Product name Dehydroacetic acid CAS number 520-45-6 Assay ≥98% Appearance White powder Capacity 200mt/year Application Used as a synthetic intermediate f

Dehydroacetic acid

Cas:520-45-6

Min.Order:10 Gram

FOB Price: $12.0

Type:Lab/Research institutions

inquiry

Hefei TNJ chemical industry co.,ltd

Hefei TNJ Chemical Industry Co., Ltd. is a large group corporation which engaged in the R&D and manufacture of chemicals, Pharmaceuticals and intermediates. We have earned ourselves a good reputation at home and abroad with advanced technology

Dehydroacetic acid, CAS No.: 520-45-6

Cas:520-45-6

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

inquiry

Xi'an Quanao Biotech Co., Ltd.

We are: Focus on the research, production and sale of Plant and Animal extract, Medical intermediate, complete coverage six industries. Product grade: Medicine, Health care product, Cosmetics, Food,Feed, Biopesticide. Hot selling market: Europe,

Dehydroacetic acid CAS 520-45-6

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $16.0 / 19.0

Type:Manufacturers

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 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione

Cas:520-45-6

Min.Order:1

Negotiable

Type:Other

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 Content Natural Extract DHA HACCP manufacturer

Cas:520-45-6

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap

Dehydroacetic acid

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

Product Name: Dehydroacetic acid Synonyms: DEHYDRACETIC ACID;DEHYDRANONE;DEHYDROACETIC ACID;LABOTEST-BB LT00053173;3-ACETYL-3,4-DIHYDRO-6-METHYL-2H-PYRAN-2,4-DIONE;3-ACETYL-4-HYDROXY-6-METHYL-2H-PYRAN-2-ONE;3-ACETYL-4-HYDROXY-6-METHYL-

520-45-6 Dehydroacetic acid

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $8900.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our 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

Dehydroacetic acid

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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

Pharmaceutical Grade CAS 520-45-6 with competitive price

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Hubei Langyou International Trading Co., Ltd

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 s

99% Dehydroacetic Acid CAS:520-45-6 For Preservative

Cas:520-45-6

Min.Order:10 Gram

Negotiable

Type:Other

inquiry

Shanghai Upbio Tech Co.,Ltd

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

Dehydroacetic acid 520-45-6

Cas:520-45-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Baoji Guokang Healthchem co.,ltd

Our 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 present

Dehydroacetic acid with CAS: 520-45-6

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $8.0 / 11.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Beluga chemical professional supply High quality Dehydroacetic acid CAS 520-45-6 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research capabilities. 2. Made in Chi

High quality Dehydroacetic acid CAS 520-45-6

Cas:520-45-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, 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

Dehydroacetic acid

Cas:520-45-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

Superiority We can customize and synthesize products that other suppliers may not be able to provide. Advantage cof, mof ligand manufacturer Product Detail bes

Factory price 99% Dehydroacetic acid CAS:520-45-6

Cas:520-45-6

Min.Order:100 Kilogram

Negotiable

Type:Trading Company

inquiry

Hebei Mojin Biotechnology Co.,Ltd

Company information: Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in carbomer,carbopol,lead acetate,meglumine diphenyl ethylamine and other chemical raw materials and chemical reagents research and development production ente

Factory supply best price CAS 520-45-6 Dehydroacetic Acid

Cas:520-45-6

Min.Order:1 Kilogram

FOB Price: $20.0 / 30.0

Type:Trading Company

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)

Dehydroacetic acid

Cas:520-45-6

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Leader Biochemical Group

PRODUCT DETAILS

China Largest Manufacturer factory Supply Dehydroacetic acid CAS 520-45-6

Cas:520-45-6

Min.Order:500 Kilogram

FOB Price: $1.0 / 2.0

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

Dehydroacetic acid

Cas:520-45-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanxi Ankesi Biotechnology Co., Ltd

Our Advantage 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good qual

Dehydroacetic acid CAS NO:520-45-6 with wholesale price

Cas:520-45-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Triumph International Development Limilted

Triumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis: Trading(Raw Mater

Dehydroacetic Acid

Cas:520-45-6

Min.Order:0 Metric Ton

FOB Price: $18.0 / 20.0

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

Dehydroacetic acid

Cas:520-45-6

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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

Dehydroacetic acid

Cas:520-45-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Massive Chemical Technology Co., Ltd.

Massive 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

Dehydroacetic acid

Cas:520-45-6

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

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

High purity Dehydroacetic acid

Cas:520-45-6

Min.Order:10 Gram

FOB Price: $100.0

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 Various Specifications Dehydroacetic acid CAS:520-45-6

Cas:520-45-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

2,2,6-trimethyl-4H-1,3-dioxin-4-one
5394-63-8

2,2,6-trimethyl-4H-1,3-dioxin-4-one

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
at 350℃; under 3.8 Torr;80%
1-ethoxybutyn-3-one
93279-40-4

1-ethoxybutyn-3-one

A

ethene
74-85-1

ethene

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
In tetrachloromethane at 90 - 95℃; for 1h;A n/a
B 77%
6-methyl-4-oxo-2-thioxo-3,4-dihydro-2H-1,3-oxazine
2911-22-0

6-methyl-4-oxo-2-thioxo-3,4-dihydro-2H-1,3-oxazine

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With hydrogenchloride; sodium hydride In tetrahydrofuran; paraffin for 1h; Heating;60%
acetic acid
64-19-7

acetic acid

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With trifluorormethanesulfonic acid; trifluoroacetic anhydride In dichloromethane at 20℃; for 6h;42%
1,1,2,2-tetramethoxyethylene
1069-12-1

1,1,2,2-tetramethoxyethylene

2,2,6-trimethyl-4H-1,3-dioxin-4-one
5394-63-8

2,2,6-trimethyl-4H-1,3-dioxin-4-one

A

2,3-dihydro-2,2,3,3-tetramethoxy-6-methyl-4H-pyran-4-one
93279-41-5

2,3-dihydro-2,2,3,3-tetramethoxy-6-methyl-4H-pyran-4-one

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
In xylene for 0.666667h; Heating;A 38%
B n/a
2,2,6-trimethyl-4H-1,3-dioxin-4-one
5394-63-8

2,2,6-trimethyl-4H-1,3-dioxin-4-one

1-phenylbutan-1,3-dione
93-91-4

1-phenylbutan-1,3-dione

A

3-benzoyl-2,6-dimethyl-4-pyrone
13838-60-3

3-benzoyl-2,6-dimethyl-4-pyrone

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
at 120 - 130℃; for 4h;A 36%
B 0.49 g
acetic acid
64-19-7

acetic acid

benzene
71-43-2

benzene

A

Dehydracetic acid
520-45-6

Dehydracetic acid

B

1-phenylbutan-1,3-dione
93-91-4

1-phenylbutan-1,3-dione

Conditions
ConditionsYield
Stage #1: acetic acid; benzene With trifluoroacetic anhydride In dichloromethane at 20℃; for 0.25h;
Stage #2: With trifluorormethanesulfonic acid In dichloromethane at 20℃; for 2h;
A 36%
B 18%
Creatinine
60-27-5

Creatinine

acetyl chloride
75-36-5

acetyl chloride

A

N-(1-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)acetamide
19036-49-8

N-(1-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)acetamide

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
A 25%
B 10%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

A

Dehydracetic acid
520-45-6

Dehydracetic acid

C12H12O6

C12H12O6

C12H12O6

C12H12O6

Conditions
ConditionsYield
With chloro-trimethyl-silane; sodium iodide In acetonitrile for 4h; Ambient temperature;A n/a
B 15.6%
C 22.4%
2-methylene-4,4,5,5-tetramethyl-1,3-dioxolane
69814-59-1

2-methylene-4,4,5,5-tetramethyl-1,3-dioxolane

acetic anhydride
108-24-7

acetic anhydride

A

Essigsaeure-2-hydroxy-1,1,2-trimethylpropylester
20127-81-5

Essigsaeure-2-hydroxy-1,1,2-trimethylpropylester

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With dmap; water 1) 80 - 90 deg C, 2h, 2) 2h; Yield given. Multistep reaction;A 15%
B n/a
With dmap; water 1) 80 - 90 deg C, 2h, 2) 2h; Yield given. Multistep reaction;A n/a
B 0.07 g
acetylketene
691-45-2

acetylketene

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
at 20℃;12%
2-amino-1H-imidazol-4(5H)-one
503-86-6

2-amino-1H-imidazol-4(5H)-one

acetyl chloride
75-36-5

acetyl chloride

A

1-acetylhydantoin
25046-23-5

1-acetylhydantoin

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
A 9%
B 10%
acetyl chloride
75-36-5

acetyl chloride

A

1-acetylhydantoin
25046-23-5

1-acetylhydantoin

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
A 9%
B 10%
2-amino-5-phenyl-4-oxazolinone
2152-34-3

2-amino-5-phenyl-4-oxazolinone

acetyl chloride
75-36-5

acetyl chloride

A

Dehydracetic acid
520-45-6

Dehydracetic acid

B

2-acetamido-5-phenyl-4-oxazolinone
15381-90-5

2-acetamido-5-phenyl-4-oxazolinone

Conditions
ConditionsYield
With triethylamine In benzene from 0-5 deg C to boiling point;A 10%
B 5%
With triethylamine In benzene for 5h; from 0-5 deg C to biling point;A 10%
B 5%
1,4-dioxane
123-91-1

1,4-dioxane

pyridine
110-86-1

pyridine

Ketene
463-51-4

Ketene

A

2-methyl-10a,11-dihydro-pyrano[2,3-b]quinolizine-4,5-dione
1744-69-0

2-methyl-10a,11-dihydro-pyrano[2,3-b]quinolizine-4,5-dione

B

Dehydracetic acid
520-45-6

Dehydracetic acid

pyridine
110-86-1

pyridine

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

acetylacetone
123-54-6

acetylacetone

Dehydracetic acid
520-45-6

Dehydracetic acid

pyridine
110-86-1

pyridine

Ketene
463-51-4

Ketene

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
es erfolgt Polymerisation;
pyridine
110-86-1

pyridine

6-methyl-pyran-2,4-dione
541-98-0

6-methyl-pyran-2,4-dione

Dehydracetic acid
520-45-6

Dehydracetic acid

pyridine
110-86-1

pyridine

acetyl chloride
75-36-5

acetyl chloride

Dehydracetic acid
520-45-6

Dehydracetic acid

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

diethyl ether
60-29-7

diethyl ether

phenylmagnesium bromide

phenylmagnesium bromide

A

1,1-diphenylethanol
599-67-7

1,1-diphenylethanol

B

acetophenone
98-86-2

acetophenone

C

Dehydracetic acid
520-45-6

Dehydracetic acid

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

toluene
108-88-3

toluene

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With 4-methyl-morpholine; pyridine; triethylamine Reagens 4: Natriumaethylat oder Natriumbutylat;
With basicene catalysts
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

benzene
71-43-2

benzene

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With basicene catalysts
With 4-methyl-morpholine; pyridine; triethylamine Reagens 4: Natriumaethylat oder Natriumbutylat;
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

A

3,9-Diacetyl-4,5,10-trimethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran-2,8-dion
13444-23-0

3,9-Diacetyl-4,5,10-trimethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran-2,8-dion

B

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With sodium phenoxide; benzene
6-methyl-pyran-2,4-dione
541-98-0

6-methyl-pyran-2,4-dione

sodium acetate
127-09-3

sodium acetate

Dehydracetic acid
520-45-6

Dehydracetic acid

6-methyl-pyran-2,4-dione
541-98-0

6-methyl-pyran-2,4-dione

acetyl chloride
75-36-5

acetyl chloride

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With aluminium trichloride; nitrobenzene
carbon suboxide
504-64-3

carbon suboxide

methylmagnesium iodide

methylmagnesium iodide

A

1,3,5-triacetyl-2,4,6-trihydroxybenzene
2161-87-7

1,3,5-triacetyl-2,4,6-trihydroxybenzene

B

Dehydracetic acid
520-45-6

Dehydracetic acid

S-ethyl acetothioacetate
3075-23-8

S-ethyl acetothioacetate

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
beim Erhitzen im Vakuum;
isoamyl acetoacetate
2308-18-1

isoamyl acetoacetate

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
bei der Destillation;
bei der Destillation unter gewoehnlichem Druck;
3-acetoxy-crotonic acid ethyl ester
29214-62-8

3-acetoxy-crotonic acid ethyl ester

A

ethyl acetoacetate
141-97-9

ethyl acetoacetate

B

ethyl acetate
141-78-6

ethyl acetate

C

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
at 233℃;
1,6-dimethyl-1,3,4,6-tetraoxohexane
1114-91-6

1,6-dimethyl-1,3,4,6-tetraoxohexane

Dehydracetic acid
520-45-6

Dehydracetic acid

Conditions
ConditionsYield
With lead(IV) acetate; acetic acid
Dehydracetic acid
520-45-6

Dehydracetic acid

2,6-dimethylpyridin-4-ol
13603-44-6

2,6-dimethylpyridin-4-ol

Conditions
ConditionsYield
With ammonia In water at 120℃; for 0.333333h; Microwave irradiation;100%
With ammonia In water at 120℃; for 0.333333h; Microwave irradiation;100%
With ammonia In water at 120℃; for 0.333333h; microwave irradiation;100%
N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

Dehydracetic acid
520-45-6

Dehydracetic acid

C11H13NO4

C11H13NO4

Conditions
ConditionsYield
In tert-butyl methyl ether at 20℃; for 8h;100%
zinc(II) acetate dihydrate
5970-45-6

zinc(II) acetate dihydrate

Dehydracetic acid
520-45-6

Dehydracetic acid

diaqua-bis(3-acetyl-3,4-dihydro-6-methyl-2,4-dioxo-2H-pyranato)zinc

diaqua-bis(3-acetyl-3,4-dihydro-6-methyl-2,4-dioxo-2H-pyranato)zinc

Conditions
ConditionsYield
In ethanol; water 40-50°C, 3-4 h; pptn. on cooling, ppt. filtration off, washing (ethanol, ether), vaccum drying (over silica gel); elem. anal.;98%
Dehydracetic acid
520-45-6

Dehydracetic acid

3-acetyl-5,6-dihydro-4-hydroxy-6-methyl-2-pyrone
18781-80-1

3-acetyl-5,6-dihydro-4-hydroxy-6-methyl-2-pyrone

Conditions
ConditionsYield
With pyridine; hydrogen; palladium on activated charcoal In benzene under 3102.9 Torr; for 40h; Ambient temperature;95%
thiosemicarbazide
79-19-6

thiosemicarbazide

Dehydracetic acid
520-45-6

Dehydracetic acid

dehydroacetic acid thiosemicarbazone

dehydroacetic acid thiosemicarbazone

Conditions
ConditionsYield
In ethanol for 2h; Heating;95%
4-chlorobenzaldehyde
104-88-1

4-chlorobenzaldehyde

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2-[(2E)-(4-chlorobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one
1449494-00-1

(2Z)-2-[(2E)-(4-chlorobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;95%
2-aminopyridine
504-29-0

2-aminopyridine

Dehydracetic acid
520-45-6

Dehydracetic acid

C13H12N2O3

C13H12N2O3

Conditions
ConditionsYield
In ethanol for 4h; Reflux;95%
copper diacetate
142-71-2

copper diacetate

Dehydracetic acid
520-45-6

Dehydracetic acid

bis(3-acetyl-3,4-dihydro-6-methyl-2,4-dioxo-2H-pyranato)copper(II)

bis(3-acetyl-3,4-dihydro-6-methyl-2,4-dioxo-2H-pyranato)copper(II)

Conditions
ConditionsYield
In ethanol; water 40-50°C, 3-4 h; pptn. on cooling, ppt. filtration off, washing (ethanol, ether), vaccum drying (over silica gel); elem. anal.;94%
4-nitrobenzaldehdye
555-16-8

4-nitrobenzaldehdye

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2,3-dihydro-3-hydroxy-3,6-dimethyl-2-[(2E)-(4-nitrobenzylidene)hydrazinylidene]-4H-furo[3,2-c]pyran-4-one
1449493-89-3

(2Z)-2,3-dihydro-3-hydroxy-3,6-dimethyl-2-[(2E)-(4-nitrobenzylidene)hydrazinylidene]-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;94%
methanol
67-56-1

methanol

manganese (II) acetate tetrahydrate
6156-78-1

manganese (II) acetate tetrahydrate

Dehydracetic acid
520-45-6

Dehydracetic acid

[Mn(dehydroacetic acid (1-))2(CH3OH)2]*0.25H2O

[Mn(dehydroacetic acid (1-))2(CH3OH)2]*0.25H2O

Conditions
ConditionsYield
In methanol mixt. Mn(OAc)2*4H2O and ligand in MeOH was refluxed for 5 h; solid was filtered, washed with MeOH, dried under vac. overnight; elem. anal.;93%
3-Chlorobenzaldehyde
587-04-2

3-Chlorobenzaldehyde

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2-[(2E)-(3-chlorobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one
1449493-93-9

(2Z)-2-[(2E)-(3-chlorobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;93%
methyl (2S)-2-amino-3-phenylpropanoate hydrochloride
7524-50-7

methyl (2S)-2-amino-3-phenylpropanoate hydrochloride

Dehydracetic acid
520-45-6

Dehydracetic acid

N-[1-(6-Methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ylidene)ethyl]-L-phenylalanine methyl ester

N-[1-(6-Methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ylidene)ethyl]-L-phenylalanine methyl ester

Conditions
ConditionsYield
With sodium methylate In methanol for 2h; Condensation; Isomerization; Heating;92%
N-butylamine
109-73-9

N-butylamine

Dehydracetic acid
520-45-6

Dehydracetic acid

3-[1-(Butylamino)ethylidene]-6-methyl-3,4-dihydro-2H-pyran-2,4-dione

3-[1-(Butylamino)ethylidene]-6-methyl-3,4-dihydro-2H-pyran-2,4-dione

Conditions
ConditionsYield
In benzene for 2h; Condensation; Isomerization; Heating;92%
pyridine
110-86-1

pyridine

zinc(II) acetate dihydrate
5970-45-6

zinc(II) acetate dihydrate

Dehydracetic acid
520-45-6

Dehydracetic acid

(C5H5N)2(C8H7O4)2Zn

(C5H5N)2(C8H7O4)2Zn

Conditions
ConditionsYield
In ethanol metal acetate dissoln. in soln. of acid, N-compd. addn., stirring and heating (50°C); elem. anal.;92%
4-bromo-benzaldehyde
1122-91-4

4-bromo-benzaldehyde

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2-[ (2E)-(4-bromobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one
1449494-02-3

(2Z)-2-[ (2E)-(4-bromobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;92%
4-fluorobenzaldehyde
459-57-4

4-fluorobenzaldehyde

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2-[(2E)-(4-fluorobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one
1449493-91-7

(2Z)-2-[(2E)-(4-fluorobenzylidene)hydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;91%
4-methoxy-6-methyl-5,6,7,8-tetrahydro-1,3-dioxolo[4,5-g]isoquinolin-5-ol
82-54-2

4-methoxy-6-methyl-5,6,7,8-tetrahydro-1,3-dioxolo[4,5-g]isoquinolin-5-ol

Dehydracetic acid
520-45-6

Dehydracetic acid

3-acetyl-3-(4-methoxy-6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinolin-5-yl)-6-methyl-2H-pyran-2,4(3H)-dione

3-acetyl-3-(4-methoxy-6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinolin-5-yl)-6-methyl-2H-pyran-2,4(3H)-dione

Conditions
ConditionsYield
In methanol at 25℃; diastereoselective reaction;91%
methanol
67-56-1

methanol

Dehydracetic acid
520-45-6

Dehydracetic acid

3,5-dioxohexanoic acid methyl ester
29736-80-9

3,5-dioxohexanoic acid methyl ester

Conditions
ConditionsYield
With magnesium at 85℃;90%
With magnesium for 16h; Reflux;81%
With magnesium for 10h; Heating;80%
With magnesium methanolate for 8h; Heating;75%
L-tyrosine methyl ester HCl
3417-91-2

L-tyrosine methyl ester HCl

Dehydracetic acid
520-45-6

Dehydracetic acid

N-[1-(6-Methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ylidene)ethyl]-L-tyrosine methyl ester

N-[1-(6-Methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ylidene)ethyl]-L-tyrosine methyl ester

Conditions
ConditionsYield
With sodium methylate In methanol for 2h; Condensation; Isomerization; Heating;90%
tryptamine hydochloride
343-94-2

tryptamine hydochloride

Dehydracetic acid
520-45-6

Dehydracetic acid

3-(1-[2-(3-indolyl)ethylamino]ethylidene)-6-methyl-2,4-pyrandione

3-(1-[2-(3-indolyl)ethylamino]ethylidene)-6-methyl-2,4-pyrandione

Conditions
ConditionsYield
With sodium hydrogencarbonate In ethanol for 4h; Heating;90%
3-Methylpyridine
108-99-6

3-Methylpyridine

zinc(II) acetate dihydrate
5970-45-6

zinc(II) acetate dihydrate

Dehydracetic acid
520-45-6

Dehydracetic acid

(C5H4NCH3)2(C8H7O4)2Zn

(C5H4NCH3)2(C8H7O4)2Zn

Conditions
ConditionsYield
In ethanol metal acetate dissoln. in soln. of acid, N-compd. addn., stirring and heating (50°C); elem. anal.;90%
N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

3-methoxy-benzaldehyde
591-31-1

3-methoxy-benzaldehyde

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2,3-dihydro-3-hydroxy-2-[(2E)-(3-methoxybenzylidene)hydrazinylidene]-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one
1449493-95-1

(2Z)-2,3-dihydro-3-hydroxy-2-[(2E)-(3-methoxybenzylidene)hydrazinylidene]-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;90%
4-methyl-benzaldehyde
104-87-0

4-methyl-benzaldehyde

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2,3-dihydro-3-hydroxy-3,6-dimethyl-2-[(2E)-(4-methylbenzylidene)hydrazinylidene]-4H-furo[3,2-c]pyran-4-one
1449494-05-6

(2Z)-2,3-dihydro-3-hydroxy-3,6-dimethyl-2-[(2E)-(4-methylbenzylidene)hydrazinylidene]-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;90%
benzoic acid hydrazide
613-94-5

benzoic acid hydrazide

Dehydracetic acid
520-45-6

Dehydracetic acid

H2dha-bhz

H2dha-bhz

Conditions
ConditionsYield
In methanol for 4h; Reflux;90%
Dehydracetic acid
520-45-6

Dehydracetic acid

3-Ethyl-6-methyl-3,4-dihydro-2H-pyran-2,4-dione
255852-63-2

3-Ethyl-6-methyl-3,4-dihydro-2H-pyran-2,4-dione

Conditions
ConditionsYield
With hydrogenchloride; sodium cyanoborohydride In tetrahydrofuran89%
With triethylsilane; lithium perchlorate; trifluoroacetic acid Reduction;83%
With methanol; platinum Hydrogenation;
picoline
108-89-4

picoline

zinc(II) acetate dihydrate
5970-45-6

zinc(II) acetate dihydrate

Dehydracetic acid
520-45-6

Dehydracetic acid

(C5H4NCH3)2(C8H7O4)2Zn

(C5H4NCH3)2(C8H7O4)2Zn

Conditions
ConditionsYield
In ethanol metal acetate dissoln. in soln. of acid, N-compd. addn., stirring and heating (50°C); elem. anal.;89%
pyridine-4-carbaldehyde
872-85-5

pyridine-4-carbaldehyde

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2,3-dihydro-3-hydroxy-3,6-dimethyl-2-{[ (2E)-(pyridin-4-yl)methylidene]hydrazinylidene}-4H-furo[3,2-c]pyran-4-one
1449493-99-5

(2Z)-2,3-dihydro-3-hydroxy-3,6-dimethyl-2-{[ (2E)-(pyridin-4-yl)methylidene]hydrazinylidene}-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;89%
benzaldehyde
100-52-7

benzaldehyde

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2-[(2E)-benzylidenehydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one
1449494-04-5

(2Z)-2-[(2E)-benzylidenehydrazinylidene]-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;89%
L-valine methylester hydrochloride
6306-52-1

L-valine methylester hydrochloride

Dehydracetic acid
520-45-6

Dehydracetic acid

methyl (S,E)-3-methyl-2-(1-(6-methyl-2,4-dioxo-2H-pyran-3(4H)-ylidene)ethylamino)butanoate

methyl (S,E)-3-methyl-2-(1-(6-methyl-2,4-dioxo-2H-pyran-3(4H)-ylidene)ethylamino)butanoate

Conditions
ConditionsYield
With sodium methylate In methanol for 2h; Condensation; Isomerization; Heating;88%
furfural
98-01-1

furfural

N-isocyaniminotriphenylphosphorane
73789-56-7

N-isocyaniminotriphenylphosphorane

Dehydracetic acid
520-45-6

Dehydracetic acid

(2Z)-2-{[(2E)-(furan-2-yl)methylidene]hydrazinylidene}-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one
1449493-97-3

(2Z)-2-{[(2E)-(furan-2-yl)methylidene]hydrazinylidene}-2,3-dihydro-3-hydroxy-3,6-dimethyl-4H-furo[3,2-c]pyran-4-one

Conditions
ConditionsYield
In dichloromethane at 25℃; for 4h;88%

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