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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's 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. DayangChem can provide different quantities

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile Manufacturer/High quality/Best price/In stock

Cas:28141-13-1

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

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

3-Cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

Cas:28141-13-1

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

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile CAS:28141-13-1

Cas:28141-13-1

Min.Order:1 Kilogram

FOB Price: $50.0 / 80.0

Type:Trading Company

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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 28141-13-1 with best quality

Cas:28141-13-1

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name: 1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile CAS No.: 28141-13-1 EC No.: 248-865-5 Molecular formula: C9H10N2O2 Molecular weight: 178.1879 Appearan

1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile

Cas:28141-13-1

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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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

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-3-Carbonitrile

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Manufacturers

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

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

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 1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile

Cas:28141-13-1

Min.Order:0 Metric Ton

Negotiable

Type:Other

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Henan Tianfu Chemical Co., Ltd.

Product Name: 1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile Synonyms: 1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-py;1-ethyl-1,2-dihydro

TIANFUCHEM--High purity 1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile factory price

Cas:28141-13-1

Min.Order:1 Metric Ton

FOB Price: $20.0

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: N-Ethyl-3-Cyano-4-Methyl-6-Hydroxy-2-Pyridone CAS No.: 28141-13-1 Molecule Formula:C9H10N2O2 Molecule Weight:178.19 Purity: 98.5% Package: 25kg/drum Description:White or off-white powder Manufacture Standards:Enterprise

Lower Price N-Ethyl-3-Cyano-4-Methyl-6-Hydroxy-2-Pyridone

Cas:28141-13-1

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Hangzhou Huarong Pharm Co., Ltd.

We 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

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

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-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

Min.Order:1 Gram

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

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

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

3-Cyano-4-Methyl-6-Hydroxy-N-Ethyl Pyridone cas no. 28141-13-1 98%

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

N-ethyl-3-cyano-4-methyl-6-hydroxy-2-pyridone

Cas:28141-13-1

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

1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Other

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

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

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

1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-3-Carbonitrile

Cas:28141-13-1

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

1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

TAIZHOU ZHENYU BIOTECHNOLOGY CO., LTD

zhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice.pls contact with us freely for getting detailed product spec

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Luyunjia Chemistry Xiamen Limited

Xiamen Luyunjia Trading Co.,Ltd Package:1kg/bag; 355kg/drum, or as customer's request. Application:Xiamen Luyunjia Trading Co.,Ltd Transportation:DHL, EMS, FedEx, TNT, AIR, SEA Port:Beijing,Shanghai,Guangzhou ,China main port

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Ocean Chemical Co., Ltd.

★.Best quality according to requirement ★.Competitive price in China market ★.Mature Technical support ★.Professional logistic support

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2- dihydropyridine-3-carbonitrile

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Antimex Chemical Limied

factory?direct?sale Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

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

Hangzhou Fandachem Co.,Ltd

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile cas 28141-13-1Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by expres

SAGECHEM LIMITED

28141-13-1 Application:intermediate

3-Pyridinecarbonitrile, 1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chemlyte Solutions

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

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Other

inquiry

Hunan Russell Chemicals Technology 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:any port in China

1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile 28141-13-1

Cas:28141-13-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

ethyl acetoacetate
141-97-9

ethyl acetoacetate

ethylamine
75-04-7

ethylamine

methyl 2-cyanoacetate
105-34-0

methyl 2-cyanoacetate

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;94%
ethylamine
75-04-7

ethylamine

acetoacetic acid methyl ester
105-45-3

acetoacetic acid methyl ester

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;94%
ethyl acetoacetate
141-97-9

ethyl acetoacetate

ethylamine
75-04-7

ethylamine

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;93%
ethylamine
75-04-7

ethylamine

acetoacetic acid methyl ester
105-45-3

acetoacetic acid methyl ester

methyl 2-cyanoacetate
105-34-0

methyl 2-cyanoacetate

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;93%
In water
4,4'-diamino-2,2'-biphenyldisulfonic acid
117-61-3

4,4'-diamino-2,2'-biphenyldisulfonic acid

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

C30H26N8O10S2

C30H26N8O10S2

Conditions
ConditionsYield
Stage #1: 4,4'-diamino-2,2'-biphenyldisulfonic acid With sodium hydroxide; sodium nitrite In water for 0.5h; pH=7 - 8; Cooling with ice;
Stage #2: With hydrogenchloride In water for 2h;
Stage #3: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone Further stages;
100%
4-(Aminophenyl)-sulfonylessigsaeure
83048-63-9

4-(Aminophenyl)-sulfonylessigsaeure

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

C17H16N4O6S

C17H16N4O6S

Conditions
ConditionsYield
Stage #1: 4-(Aminophenyl)-sulfonylessigsaeure With hydrogenchloride; sodium nitrite In water at -5 - 0℃;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium hydroxide In water at -5 - 10℃; pH=5.5 - 6;
97.67%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

C15H14N4O5S

C15H14N4O5S

Conditions
ConditionsYield
Stage #1: 4-aminobenzene sulfonic acid With sodium hydroxide In water pH=7 - 8; Cooling with ice;
Stage #2: With hydrogenchloride; sodium nitrite In water for 2.5h; Cooling with ice;
Stage #3: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In water for 2h; pH=8 - 9; Cooling with ice;
92%
Stage #1: 4-aminobenzene sulfonic acid With hydrogenchloride; sodium nitrite In water at 5 - 10℃; for 3h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium hydroxide In water at 10℃; pH=5 - 8;
78%
Stage #1: 4-aminobenzene sulfonic acid With hydrogenchloride; sodium nitrite In water at 5 - 10℃;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium hydroxide In water at 10℃; pH=5 - 8;
60.4 g
2-Amino-4,5,6,7-tetrahydrobenzothiazole
2933-29-1

2-Amino-4,5,6,7-tetrahydrobenzothiazole

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-4-methyl-2-oxo-5-[4,5,6,7-tetrahydro-1,3-benzothiazol-2 yldiazenyl]-1,2-dihydropyridine-3-carbonitrile

1-ethyl-6-hydroxy-4-methyl-2-oxo-5-[4,5,6,7-tetrahydro-1,3-benzothiazol-2 yldiazenyl]-1,2-dihydropyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 2-Amino-4,5,6,7-tetrahydrobenzothiazole With hydrogenchloride; sodium nitrite In water at 0 - 5℃; for 2h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With acetic acid In water at 0 - 5℃; for 2h;
88%
C12H11BrN3O2(1+)*HO4S(1-)

C12H11BrN3O2(1+)*HO4S(1-)

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

C21H20BrN5O4

C21H20BrN5O4

Conditions
ConditionsYield
With sodium hydroxide; 2,4,7,9-tetramethyl-5-decyne-4,7-diol In water at 10 - 15℃; for 1.5h; pH=2 - 12;86%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

anthranilic acid
118-92-3

anthranilic acid

C16H14N4O4

C16H14N4O4

Conditions
ConditionsYield
Stage #1: anthranilic acid With sulfuric acid; acetic acid; sodium nitrite In water for 0.5h; Cooling with ice;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In ethanol; water at 0 - 5℃; for 3h;
86%
2-Amino-4-phenylthiazole
2010-06-2

2-Amino-4-phenylthiazole

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

(E)-1-ethyl-6-hydroxy-4-methyl-2-oxo-5-((4-phenylthiazol-2-yl)diazenyl)-1,2-dihydropyridine-3-carbonitrile
1449324-68-8

(E)-1-ethyl-6-hydroxy-4-methyl-2-oxo-5-((4-phenylthiazol-2-yl)diazenyl)-1,2-dihydropyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 2-Amino-4-phenylthiazole With nitrosylsulfuric acid; sodium nitrite at 0 - 5℃;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium acetate; sodium hydroxide In water at 0 - 5℃; pH=6 - 7;
85%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

6-chloro-1-ethyl-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

6-chloro-1-ethyl-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Conditions
ConditionsYield
With trichlorophosphate at 80℃;84%
With trichlorophosphate for 3h; Reflux;64%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

4-amino-benzoic acid
150-13-0

4-amino-benzoic acid

C16H14N4O4

C16H14N4O4

Conditions
ConditionsYield
Stage #1: 4-amino-benzoic acid With sulfuric acid; acetic acid; sodium nitrite In water for 0.5h; Cooling with ice;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In ethanol; water at 0 - 5℃; for 3h;
84%
2-amino-4-chloro-5-formyl-3-cyanothiophene
104366-23-6

2-amino-4-chloro-5-formyl-3-cyanothiophene

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

(Z)-5-((5-amino-3-chloro-4-cyanothiophen-2-yl)methylene)-1-ethyl-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile

(Z)-5-((5-amino-3-chloro-4-cyanothiophen-2-yl)methylene)-1-ethyl-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile

Conditions
ConditionsYield
With acetic anhydride at 90℃; for 2h;78%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

4-methoxy-aniline
104-94-9

4-methoxy-aniline

1-ethyl-6-hydroxy-5-((4-methoxyphenyl) diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine -3-carbonitrile
104495-77-4

1-ethyl-6-hydroxy-5-((4-methoxyphenyl) diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine -3-carbonitrile

Conditions
ConditionsYield
Stage #1: 4-methoxy-aniline With hydrogenchloride; sodium nitrite In water at -5℃; for 1h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With potassium hydroxide In water at -5 - 5℃; for 3.5h;
73%
6-methylbenzothiazol-2-ylamine
2536-91-6

6-methylbenzothiazol-2-ylamine

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-4-methyl-5-[(E)-(6-methyl-1,3-benzothiazol-2-yl)diazenyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile

1-ethyl-6-hydroxy-4-methyl-5-[(E)-(6-methyl-1,3-benzothiazol-2-yl)diazenyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 6-methylbenzothiazol-2-ylamine With nitrosylsulfuric acid; acetic acid In propionic acid at 0 - 5℃; for 3h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium carbonate In propionic acid at 0 - 4℃; for 2h; pH=6 - 7;
73%
2-thiazolylamine
96-50-4

2-thiazolylamine

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-4-methyl-2-oxo-5-[1,3-thiazol-2-yldiazenyl]-1,2-dihydropyridine-3-carbonitrile

1-ethyl-6-hydroxy-4-methyl-2-oxo-5-[1,3-thiazol-2-yldiazenyl]-1,2-dihydropyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 2-thiazolylamine With sulfuric acid; acetic acid; propionic acid; sodium nitrite at 0 - 5℃; for 2.33333h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With potassium hydroxide In water at 0 - 5℃; for 2h; pH=5 - 6;
70%
C20H28N4O4S2

C20H28N4O4S2

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

C38H42N10O8S2

C38H42N10O8S2

Conditions
ConditionsYield
Stage #1: C20H28N4O4S2 With hydrogenchloride; sodium nitrite In water at 0 - 5℃; for 2h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium hydroxide In water at 10℃; pH=8;
69%
6-methoxybenzothiazol-2-ylamine
1747-60-0

6-methoxybenzothiazol-2-ylamine

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-5-[(E)-(6-methoxy-1,3-benzothiazol-2-yl)diazenyl]-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

1-ethyl-6-hydroxy-5-[(E)-(6-methoxy-1,3-benzothiazol-2-yl)diazenyl]-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 6-methoxybenzothiazol-2-ylamine With nitrosylsulfuric acid; acetic acid In propionic acid at 0 - 5℃; for 3h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium carbonate In propionic acid at 0 - 4℃; for 2h; pH=6 - 7;
69%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

4-methoxy-2-nitroaniline
96-96-8

4-methoxy-2-nitroaniline

(Z)-1-ethyl-5-(2-(4-methoxy-2-nitrophenyl)hydrazono)-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile
1399166-04-1

(Z)-1-ethyl-5-(2-(4-methoxy-2-nitrophenyl)hydrazono)-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 4-methoxy-2-nitroaniline With hydrogenchloride; sodium nitrite In water at -5℃; for 0.5h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In methanol; water at 0 - 5℃; for 3h;
68%
m-Anisidine
536-90-3

m-Anisidine

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-5-((3-methoxyphenyl) diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine -3-carbonitrile
881069-36-9

1-ethyl-6-hydroxy-5-((3-methoxyphenyl) diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine -3-carbonitrile

Conditions
ConditionsYield
Stage #1: m-Anisidine With hydrogenchloride; sodium nitrite In water at -5℃; for 1h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With potassium hydroxide In water at -5 - 5℃; for 3.5h;
67%
2-amino-5-nitro-1,3-thiazole
121-66-4

2-amino-5-nitro-1,3-thiazole

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-4-methyl-5-[-(5-nitro-1,3-thiazol-2-yl)diazenyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile

1-ethyl-6-hydroxy-4-methyl-5-[-(5-nitro-1,3-thiazol-2-yl)diazenyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 2-amino-5-nitro-1,3-thiazole With phosphoric acid at 0 - 5℃; for 0.166667h;
Stage #2: With sulfuric acid; sodium nitrite for 2.25h;
Stage #3: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In acetic acid at 0 - 5℃; for 1.16667h;
60%
2-methoxy-phenylamine
90-04-0

2-methoxy-phenylamine

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-5-((2-methoxyphenyl) diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine -3-carbonitrile
881070-11-7

1-ethyl-6-hydroxy-5-((2-methoxyphenyl) diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine -3-carbonitrile

Conditions
ConditionsYield
Stage #1: 2-methoxy-phenylamine With hydrogenchloride; sodium nitrite In water at -5℃; for 1h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With potassium hydroxide In water at -5 - 5℃; for 3.5h;
58%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

N,N'-diphenylformamidine
864131-95-3

N,N'-diphenylformamidine

1,1'-[4,5,6-tris(n-dodecan-1-yloxy)-1,3-phenylenebis(methylene)]bis(4-methylpyridinium) dibromide

1,1'-[4,5,6-tris(n-dodecan-1-yloxy)-1,3-phenylenebis(methylene)]bis(4-methylpyridinium) dibromide

(5Z,5'Z)-5,5'-{[4,5,6-tris(dodecyloxy)-1,3-phenylene]bis[methylenepyridin-1-yl-4-ylidene(1Z)ethane-2,1-diylidene]}bis(1-ethyl-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile)

(5Z,5'Z)-5,5'-{[4,5,6-tris(dodecyloxy)-1,3-phenylene]bis[methylenepyridin-1-yl-4-ylidene(1Z)ethane-2,1-diylidene]}bis(1-ethyl-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile)

Conditions
ConditionsYield
Stage #1: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone; N,N'-diphenylformamidine In acetic anhydride at 20 - 90℃; for 0.75h;
Stage #2: 1,1'-[4,5,6-tris(n-dodecan-1-yloxy)-1,3-phenylenebis(methylene)]bis(4-methylpyridinium) dibromide With potassium acetate In acetic anhydride at 105℃; for 20h; Further stages.;
42%
4-(trifluoromethanesulfonyl)aniline
473-27-8

4-(trifluoromethanesulfonyl)aniline

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-6-hydroxy-4-methyl-2-oxo-5-(4-trifluoromethanesulfonyl-phenylazo)-1,2-dihydro-pyridine-3-carbonitrile

1-ethyl-6-hydroxy-4-methyl-2-oxo-5-(4-trifluoromethanesulfonyl-phenylazo)-1,2-dihydro-pyridine-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 4-(trifluoromethanesulfonyl)aniline With sulfuric acid; sodium nitrite In N,N-dimethyl-formamide at 0℃; for 3h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In N,N-dimethyl-formamide at 20℃; Further stages.;
40%
3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

3-azido-3-ethyl-1,3-benzothiazolium-tetrafluoroborat

3-azido-3-ethyl-1,3-benzothiazolium-tetrafluoroborat

(2-Amino-3-ethylbenzothiazolium)-5-cyano-3-<2-(5-cyano-1-ethyl-1,2,3,6-tetrahydro-4-methyl-2,6-dioxopyridin-3-yliden)hydrazino>-1-ethyl-1,6-dihydro-4-methyl-6-oxopyridin-2-olat

(2-Amino-3-ethylbenzothiazolium)-5-cyano-3-<2-(5-cyano-1-ethyl-1,2,3,6-tetrahydro-4-methyl-2,6-dioxopyridin-3-yliden)hydrazino>-1-ethyl-1,6-dihydro-4-methyl-6-oxopyridin-2-olat

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 0℃; for 2h;27%
2,3-Dichloro-1,4-naphthoquinone
117-80-6

2,3-Dichloro-1,4-naphthoquinone

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

1-ethyl-4-methyl-2,5,10-trioxo-1,2,5,10-tetrahydro-naphtho[2',3':4,5]furo[2,3-b]pyridine-3-carbonitrile
71684-03-2

1-ethyl-4-methyl-2,5,10-trioxo-1,2,5,10-tetrahydro-naphtho[2',3':4,5]furo[2,3-b]pyridine-3-carbonitrile

Conditions
ConditionsYield
With pyridine In ethanol Heating;
2,3-difluoro-4-ethoxybenzoic acid
124728-45-6

2,3-difluoro-4-ethoxybenzoic acid

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

C18H16F2N2O4

C18H16F2N2O4

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In ISOPROPYLAMIDE
2,6-difluoro-4-heptynylbenzoic acid
749900-86-5

2,6-difluoro-4-heptynylbenzoic acid

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

C23H22F2N2O3

C23H22F2N2O3

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In ISOPROPYLAMIDE for 16h;

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