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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

Factory direct supply CAS 10521-08-1 with best quality

Cas:10521-08-1

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98 CAS:10521-08-1

Cas:10521-08-1

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

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

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:10 Kilogram

Negotiable

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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-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98 CAS:10521-08-1 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

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98 CAS:10521-08-1

Cas:10521-08-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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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

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:1 Kilogram

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Hubei Jiutian Bio-medical Technology Co., Ltd

Name: 2H-Pyran-2,4,6(3H,5H)-trione Synonyms: Pyran-2,4,6-trione; oxane-2,4,6-trione; b-Ketoglutaric anhydride; 2H-Pyran-2,4,6(3H,5H)-trione; acetonedicarboxylic acid anhydride; Acetone dicarboxylic acid anhydride; 1,3-Acetonedicarboxylic acid anhydri

2H-pyran-2,4,6(3H,5H)-trione 10521-08-1

Cas:10521-08-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE

Cas:10521-08-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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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-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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

1,3-Acetonedicarboxylic acid an

Cas:10521-08-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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SHANGHAI SYSTEAM BIOCHEM CO., LTD

We 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

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

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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,

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Best Offer1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Trading Company

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EAST CHEMSOURCES LIMITED

factory?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

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

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Hangzhou Fandachem Co.,Ltd

Hangzhou Fandachem Co.,Ltd, a China-based chemical company, specialize in exporting 1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98,cas:10521-08-1, Please contact us by email freely. We are leading exporter in China. If you really need this

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98,cas:10521-08-1 from fandachem

Cas:10521-08-1

Min.Order:1 Metric Ton

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Type:Other

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Shandong Mopai Biotechnology Co., LTD

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

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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KAISA GROUP INC

1.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

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

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Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

Jinlan Pharm-Drugs Technology Co.,Limited (with its export company Hangzhou Royall Import & Export Co.,Ltd.)is located in Hangzhou, Zhejiang Province. Neighboring Ningbo port, Shanghai port, Hangzhou Xiaoshan Int’l Airport and Shanghai Pudong Int’l A

[4-bromo-3-(3-chloro-5-cyanophenoxy)-2-fluorophenyl]acetic acid

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Other

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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:

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Golden Pharma Co., Limited

GOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:1 Kilogram

Negotiable

Type:Other

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Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

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Hebei Mojin Biotechnology Co.,Ltd

1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Trading Company

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GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Wuxi TAA Chemical Industry Co.,LTD.

1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Other

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Xi`an Eastling Biotech Co., Ltd.

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

1,3-ACETONEDICARBOXYLIC ACID ANHYDRIDE 98

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Manufacturers

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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

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate

2H-Pyran-2,4,6(3H,5H)-trione

Cas:10521-08-1

Min.Order:0

Negotiable

Type:Trading Company

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Synthetic route

acetonedicarboxylic acid
542-05-2

acetonedicarboxylic acid

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

Conditions
ConditionsYield
With acetic anhydride at 0℃; for 3h;95.3%
With acetic anhydride at 0℃; for 15h;93%
With acetic anhydride; acetic acid at 0 - 10℃; for 3h;86%
acetonedicarboxylic acid
542-05-2

acetonedicarboxylic acid

acetic anhydride
108-24-7

acetic anhydride

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

Conditions
ConditionsYield
With acetic acid In toluene at 5 - 10℃;87%
acetonedicarboxylic acid
542-05-2

acetonedicarboxylic acid

acetic anhydride
108-24-7

acetic anhydride

A

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

B

3-acetyl-tetrahydropyran-2,4,6-trione
33524-90-2

3-acetyl-tetrahydropyran-2,4,6-trione

C

2-acetyl-3-oxo-glutaric acid
33524-88-8

2-acetyl-3-oxo-glutaric acid

D

2,4-diacetyl-3-oxo-pentanedioic acid anhydride
10386-63-7

2,4-diacetyl-3-oxo-pentanedioic acid anhydride

citric acid
77-92-9

citric acid

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: chlorosulfonic acid / chloroform / 10 - 30 °C
2: acetic anhydride / 3 h / 0 °C
View Scheme
methanol
67-56-1

methanol

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

acetone-1,3-dicarboxylic acid mono-methyl ester
78315-99-8

acetone-1,3-dicarboxylic acid mono-methyl ester

Conditions
ConditionsYield
at 20℃; for 2h; Cooling with ice;100%
for 1.5h; Ambient temperature;23.90 g
for 30h;
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

ethanol
64-17-5

ethanol

3-oxo-glutaric acid monoethyl ester
5526-36-3

3-oxo-glutaric acid monoethyl ester

Conditions
ConditionsYield
at 20℃; for 2h; Inert atmosphere;100%
at 20℃; for 2h; Cooling with ice;100%
In n-heptane at 20 - 25℃;
at 0 - 20℃; for 3h;
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

isopropyl alcohol
67-63-0

isopropyl alcohol

C8H12O5

C8H12O5

Conditions
ConditionsYield
at 20℃; for 2h; Cooling with ice;100%
In water at 0 - 20℃;
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

butan-1-ol
71-36-3

butan-1-ol

C9H14O5

C9H14O5

Conditions
ConditionsYield
at 20℃; for 2h; Cooling with ice;100%
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

4,6-dimethoxy-2-pyrone
21249-83-2

4,6-dimethoxy-2-pyrone

Conditions
ConditionsYield
In diethyl ether at 25℃; for 3h;82%
pyridine-2-carbaldehyde
1121-60-4

pyridine-2-carbaldehyde

methanol
67-56-1

methanol

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

2-CHLOROBENZYLAMINE
89-97-4

2-CHLOROBENZYLAMINE

N-(2-Chlorbenzyl)-2,6-di<2>pyridyl-4-piperidon-3-carbonsaeuremethylester

N-(2-Chlorbenzyl)-2,6-di<2>pyridyl-4-piperidon-3-carbonsaeuremethylester

Conditions
ConditionsYield
44%
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

3,5-Bis-diazo-pyran-2,4,6-trione
128243-43-6

3,5-Bis-diazo-pyran-2,4,6-trione

Conditions
ConditionsYield
With 3-azido-3-ethyl-1,3-benzothiazolium-tetrafluoroborat; acetic acid 1) 20 h, 20 deg C, 2) 2 h, 60 deg C;36%
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

methyl chloroformate
79-22-1

methyl chloroformate

methyl 2-hydroxy-4-(methoxycarbonyloxy)-6-oxo-6H-pyran-3-carboxylate

methyl 2-hydroxy-4-(methoxycarbonyloxy)-6-oxo-6H-pyran-3-carboxylate

Conditions
ConditionsYield
With pyridine In dichloromethane at 20℃;36%
pyridine-2-carbaldehyde
1121-60-4

pyridine-2-carbaldehyde

methanol
67-56-1

methanol

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

cyclopropanemethylamine
2516-47-4

cyclopropanemethylamine

N-Cyclopropylmethyl-2,6-di<2>pyridyl-4-piperidon-3-carbonsaeuremethylester

N-Cyclopropylmethyl-2,6-di<2>pyridyl-4-piperidon-3-carbonsaeuremethylester

Conditions
ConditionsYield
35%
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

sodium acetate
127-09-3

sodium acetate

benzene diazonium chloride
100-34-5

benzene diazonium chloride

3-oxo-2-phenylhydrazono-glutaric acid-anhydride

3-oxo-2-phenylhydrazono-glutaric acid-anhydride

Conditions
ConditionsYield
at 0℃;
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

acetic anhydride
108-24-7

acetic anhydride

3-acetyl-tetrahydropyran-2,4,6-trione
33524-90-2

3-acetyl-tetrahydropyran-2,4,6-trione

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

acetone-1,3-dicarboxylic acid mono-methyl ester
78315-99-8

acetone-1,3-dicarboxylic acid mono-methyl ester

Conditions
ConditionsYield
With methanol
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

2-amino-benzenethiol
137-07-5

2-amino-benzenethiol

4-benzothiazol-2-yl-3-oxo-butyric acid
17822-28-5

4-benzothiazol-2-yl-3-oxo-butyric acid

Conditions
ConditionsYield
In acetic acid methyl ester
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

benzene
71-43-2

benzene

5-phenyl-3,5-dioxo-1-pentanoic acid
5526-43-2

5-phenyl-3,5-dioxo-1-pentanoic acid

Conditions
ConditionsYield
With hydrogenchloride; aluminium trichloride; water 1.) reflux, 1 h, 2.) 0-5 deg C, 1 h 40 min; Yield given. Multistep reaction;
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

diethyl ether
60-29-7

diethyl ether

4.6-dimethoxy-pyrone-(2)

4.6-dimethoxy-pyrone-(2)

pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

acetic anhydride
108-24-7

acetic anhydride

6-oxy-4-acetoxy-pyrone-(2)

6-oxy-4-acetoxy-pyrone-(2)

Conditions
ConditionsYield
at 45℃;
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

6-exo,8-dimethyl-3-hydroxy-8-aza-bicyclo[3.2.1]-octane-2-carboxylic acid methyl ester

6-exo,8-dimethyl-3-hydroxy-8-aza-bicyclo[3.2.1]-octane-2-carboxylic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: 1 h / 20 °C
2.1: NaOH; sodium citrate / H2O / 72 h / 20 °C
2.2: 0.52 g / NaBH4 / methanol / 3 h / -30 °C
View Scheme
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

7-exo,8-dimethyl-8-aza-bicyclo[3.2.1]-oct-2-ene-2-carboxylic acid methyl ester

7-exo,8-dimethyl-8-aza-bicyclo[3.2.1]-oct-2-ene-2-carboxylic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: 1 h / 20 °C
2.1: NaOH; sodium citrate / H2O / 72 h / 20 °C
2.2: NaBH4 / methanol / 3 h / -30 °C
2.3: 0.23 g / pyridine; POCl3 / 1 h / Heating
View Scheme
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

4-hydroxy-6-phenyl-2H-pyran-2-one
5526-38-5

4-hydroxy-6-phenyl-2H-pyran-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1.) AlCl3, 2.) water, HCl / 1.) reflux, 1 h, 2.) 0-5 deg C, 1 h 40 min
2: 98.6 percent / trifluoroacetic anhydride / diethyl ether / 2 h / 0 °C
View Scheme
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

4-methoxy-6-phenyl-2H-pyran-2-one
4225-45-0

4-methoxy-6-phenyl-2H-pyran-2-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 1.) AlCl3, 2.) water, HCl / 1.) reflux, 1 h, 2.) 0-5 deg C, 1 h 40 min
2: 98.6 percent / trifluoroacetic anhydride / diethyl ether / 2 h / 0 °C
3: 88.4 percent / K2CO3 / acetone / 18 h / Heating
View Scheme
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

3-(4-Hydroxy-6-methoxycarbonylmethyl-2-oxo-2H-pyran-3-yl)-3-oxo-propionic acid methyl ester
80601-62-3

3-(4-Hydroxy-6-methoxycarbonylmethyl-2-oxo-2H-pyran-3-yl)-3-oxo-propionic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 30 h
2: 15.5 percent / 1.) 1,1'-carbonyldiimidazole, 2.) dil. HCl / tetrahydrofuran
View Scheme
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

methyl 7-methyl-3-oxonona-4,6-dien-8-yne-1-carboxylate
85850-13-1

methyl 7-methyl-3-oxonona-4,6-dien-8-yne-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 23.90 g / 1.5 h / Ambient temperature
2: 48 percent / pyridine / diethyl ether / 1.) -15 deg C, 2.) 18 h, room temp.
3: 6.6 percent / piperidinium acetate / benzene; diethyl ether / 1.) -20 deg C, 2.) 18 h, room temp.
View Scheme
pyran-2,4,6-trione
10521-08-1

pyran-2,4,6-trione

methyl trimethylsilyl acetonedicarboxylate
85850-12-0

methyl trimethylsilyl acetonedicarboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 23.90 g / 1.5 h / Ambient temperature
2: 48 percent / pyridine / diethyl ether / 1.) -15 deg C, 2.) 18 h, room temp.
View Scheme

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