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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

4-Amino-3,5-dichloropyridine Manufacturer/High quality/Best price/In stock

Cas:22889-78-7

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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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 4-Amino-3,5-Dichloropyridine supplier in China

Cas:22889-78-7

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Wuhan Fortuna Chemical Co.,Ltd

High quality 4-Amino-3,5-dichloropyridine CAS 22889-78-7 with factory price Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Foo

High quality 4-Amino-3,5-dichloropyridine CAS 22889-78-7 with factory price

Cas:22889-78-7

Min.Order:10 Kilogram

FOB Price: $10.0

Type:Trading Company

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Henan Allgreen Chemical Co.,Ltd

Good quality Good price Promptly delivery Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:intermediate Transportation:A

22889-78-74-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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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 4-Amino-3,5-Dichloropyridine

Cas:22889-78-7

Min.Order:1

Negotiable

Type:Other

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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 api, intermedi

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Kilogram

FOB Price: $5.0 / 10.0

Type:Manufacturers

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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

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com/pro01en/id/1672.html Product Name 4-Amino-3,5-dichloropyridine CAS No. 22889-78

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Gram

FOB Price: $2.0

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

4-Amino-3,5-dichloropyridine Basic information Product Name: 4-Amino-3,5-dichloropyridine Synonyms: AURORA 23319;BUTTPARK 153\57-30;LABOTEST-BB LT00454840;4-PYRIDIN

TIANFU-CHEM 4-Amino-3,5-dichloropyridine 22889-78-7

Cas:22889-78-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

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 22889-78-7 with best quality

Cas:22889-78-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product name 4-Amino-3,5-dichloropyridine Cas number 22889-78-7 Molecular formula C5H4Cl2N2 Molecular weight 163 Appearance

4-Amino-3,5-dichloropyridine CAS: 22889-78-7

Cas:22889-78-7

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

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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 serv

4-Amino-3,5-dichloropyridine 22889-78-7

Cas:22889-78-7

Min.Order:10 Gram

Negotiable

Type:Other

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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

4-Amino-3,5-dichloropyridine 22889-78-7

Cas:22889-78-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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 prese

4-Amino-3,5-dichloropyridine, 99%

Cas:22889-78-7

Min.Order:1 Kilogram

FOB Price: $85.0 / 99.0

Type:Trading Company

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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

CAS NO.:22889-78-7

Cas:22889-78-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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

4-Amino-3,5-Dichloropyridine

Cas:22889-78-7

Min.Order:0

Negotiable

Type:Manufacturers

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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 have s

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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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

4-Amino-3£?5-dichloropyridine

Cas:22889-78-7

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

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

4-AMINO-3,5-DICHLOROPYRIDINE

Cas:22889-78-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shaanxi Cuicheng Biomedical Technology Co., Ltd.

Why Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Gram

Negotiable

Type:Other

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

3,5-Dichloro-4-aminopyridine/Manufacturer/High quality/Best price

Cas:22889-78-7

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:White crystal powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:as per your request Application:Used as Pharmaceutical Intermediates Transport

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Hangzhou Huarong Pharm Co., Ltd.

Huarong Industrial Group Limited established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World.

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Gram

FOB Price: $1.0 / 2.0

Type:Trading Company

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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,

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: 4-Amino-3,5-dichloropyridine Synonyms: 4-AMINO-3,5-DICHLOROPYRIDINE, 98+%;4-Amino-3,5-Dichloropyridine 99%;aminodichloropyridine;OTAVA-BB BB7017520048;3,5-DICHLORO-4-AMINOPYRIDINE - HAZARDOUS;Roflumilast impurity F (domestic coded

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

4-Amino-3£ 5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

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

4-Amino-3,5-dichloropyridine

Cas:22889-78-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

4-aminopyridine
504-24-5

4-aminopyridine

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
Stage #1: 4-aminopyridine With hydrogenchloride; dihydrogen peroxide In water at 10 - 72℃; for 3.25h;
Stage #2: With sodium hydroxide In water at 45℃; for 0.5h; pH=9 - 10; Reagent/catalyst; Temperature;
92.7%
With hydrogenchloride; dihydrogen peroxide
With aqueous hydrogen peroxide In concentrated hydrochloric acid
3,3,5,5-tetrachloropiperidin-4-one

3,3,5,5-tetrachloropiperidin-4-one

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
With ammonia In methanol at 40 - 45℃; for 4h; Autoclave;89.7%
3,5-dichloropyridine-4-carbonitrile
153463-65-1

3,5-dichloropyridine-4-carbonitrile

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
With lithium amide In ammonia 0 deg C to RT;54%
4-amino-3-chloropyridine
19798-77-7

4-amino-3-chloropyridine

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
With hydrogenchloride; dihydrogen peroxide
3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
With ammonium hydroxide at 150℃; im Rohr;
4-amino-3,5-dichloro-pyridine-2-carboxylic acid
17122-17-7

4-amino-3,5-dichloro-pyridine-2-carboxylic acid

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
Erhitzen ueber den Schmelzpunkt;
3.5-dichloro-4-amino-picolinic acid

3.5-dichloro-4-amino-picolinic acid

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
beim Erhitzen ueber den Schmelzpunkt;
3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

ammonia
7664-41-7

ammonia

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
at 150℃; im Rohr;
4-aminopyridine
504-24-5

4-aminopyridine

hydrogenchloride
7647-01-0

hydrogenchloride

water
7732-18-5

water

dihydrogen peroxide
7722-84-1

dihydrogen peroxide

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

hydrogenchloride
7647-01-0

hydrogenchloride

4-(nitroamino)pyridine
26482-55-3

4-(nitroamino)pyridine

A

4-Chloropyridine
626-61-9

4-Chloropyridine

B

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

C

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
at 100℃;
3-amino-4-chloropyridine
20511-15-3

3-amino-4-chloropyridine

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium nitrite; copper-powder; aqueous hydrochloric acid / Diazotization
2: aqueous NH3 / 190 °C
3: concentrated aqueous HCl; aqueous H2O2
View Scheme
3,4-dichloropyridine
55934-00-4

3,4-dichloropyridine

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aqueous NH3 / 190 °C
2: concentrated aqueous HCl; aqueous H2O2
View Scheme
3-benzoyloxy-4-methoxybenzoyl chloride
144036-22-6

3-benzoyloxy-4-methoxybenzoyl chloride

A

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

B

N-(3,5-dichloropyrid-4-yl)-3-benzoyloxy-4-methoxybenzamide
159782-90-8

N-(3,5-dichloropyrid-4-yl)-3-benzoyloxy-4-methoxybenzamide

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

5-[5-{[(3,5-dichloropyridin-4-yl)amino]carbonyl}-2-(difluoromethoxy) phenoxy]pentanoic acid
1422361-76-9

5-[5-{[(3,5-dichloropyridin-4-yl)amino]carbonyl}-2-(difluoromethoxy) phenoxy]pentanoic acid

Conditions
ConditionsYield
With thionyl chloride In tetrahydrofuran; toluene96.45%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

2-(3-benzyloxy-propyl)-3,4-dimethoxy-benzoic acid
1006612-51-6

2-(3-benzyloxy-propyl)-3,4-dimethoxy-benzoic acid

2-(3-benzyloxy-propyl)-N-(3,5-dichloro-pyridin-4-yl)-3,4-dimethoxy-benzamide
1006612-52-7

2-(3-benzyloxy-propyl)-N-(3,5-dichloro-pyridin-4-yl)-3,4-dimethoxy-benzamide

Conditions
ConditionsYield
Stage #1: 2-(3-benzyloxy-propyl)-3,4-dimethoxy-benzoic acid With benzotriazol-1-ol; dicyclohexyl-carbodiimide In dichloromethane at 40℃; for 2h;
Stage #2: 3,5-dichloro-4-aminopyridine With sodium hydride In tetrahydrofuran at 20 - 30℃; for 3.5h;
96%
3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzoic acid
162401-62-9

3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzoic acid

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

roflumilast
162401-32-3

roflumilast

Conditions
ConditionsYield
Stage #1: 3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzoic acid With pyridine; 2,4,6-trinitrochlorobenzene In 1,4-dioxane at 20 - 35℃; for 3h; Industrial scale;
Stage #2: 3,5-dichloro-4-aminopyridine In 1,4-dioxane for 2h; Reagent/catalyst; Solvent; Temperature; Industrial scale;
95%
Stage #1: 3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzoic acid With 4-methyl-morpholine; 2-chloro-4,6-dimethoxy-1 ,3,5-triazine In dichloromethane at 0 - 20℃; for 3h;
Stage #2: 3,5-dichloro-4-aminopyridine In dichloromethane for 2h; Concentration;
91%
Stage #1: 3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzoic acid With pivaloyl chloride; sodium carbonate In tetrahydrofuran at 25℃; for 2h;
Stage #2: 3,5-dichloro-4-aminopyridine In tetrahydrofuran at 50℃; for 4h; Temperature; Solvent; Reagent/catalyst;
64%
Stage #1: 3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzoic acid With thionyl chloride In toluene Heating / reflux;
Stage #2: 3,5-dichloro-4-aminopyridine With sodium hydride In tetrahydrofuran for 1h; Cooling;
58.6%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

3-(difluoromethoxy)-4-(cyclopropylmethoxy)-benzoic acid
162401-69-6

3-(difluoromethoxy)-4-(cyclopropylmethoxy)-benzoic acid

roflumilast
162401-32-3

roflumilast

Conditions
ConditionsYield
Stage #1: 3-(difluoromethoxy)-4-(cyclopropylmethoxy)-benzoic acid With thionyl chloride In toluene for 2h; Reflux;
Stage #2: 3,5-dichloro-4-aminopyridine With sodium hydride In tetrahydrofuran at 15 - 20℃;
95%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

3-Phenylpropionic acid
501-52-0

3-Phenylpropionic acid

N-(3,5-dichloropyridin-4-yl)-3-phenylpropanamide
1370286-81-9

N-(3,5-dichloropyridin-4-yl)-3-phenylpropanamide

Conditions
ConditionsYield
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 1h;93%
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h;93.3%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

4-nitrophenyl 8-methoxy-2,9-dimethyl-1-oxo-1,2,3,4-tetrahydro-β-carboline-5-carboxylate
893555-73-2

4-nitrophenyl 8-methoxy-2,9-dimethyl-1-oxo-1,2,3,4-tetrahydro-β-carboline-5-carboxylate

N-(3,5-dichloropyridin-4-yl)-2,9-dimethyl-8-methoxy-1-oxo-1,2,3,4-tetrahydro-β-carboline-5-carboxamide

N-(3,5-dichloropyridin-4-yl)-2,9-dimethyl-8-methoxy-1-oxo-1,2,3,4-tetrahydro-β-carboline-5-carboxamide

Conditions
ConditionsYield
With sodium hydride at 20℃; for 18h;90%
With sodium hydride In N,N-dimethyl-formamide at 20℃; for 18h;
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-imidazol-1-yl)methanone
1590361-85-5

(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-imidazol-1-yl)methanone

roflumilast
162401-32-3

roflumilast

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With cesium fluoride In dimethyl sulfoxide at 90℃; for 3h;
Stage #2: (3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-imidazol-1-yl)methanone In dimethyl sulfoxide at 90 - 95℃; for 6.5h; Reagent/catalyst;
88%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

p-nitrophenyl 4-difluormethoxy-8-nitrodibenzofuran carboxylic acid ester
883977-47-7

p-nitrophenyl 4-difluormethoxy-8-nitrodibenzofuran carboxylic acid ester

N-(3,5-dichloro-pyridin-4-yl)-4-difluoromethoxy-8-nitro-dibenzo[b,d]furane-1-carboxamide
685875-02-9

N-(3,5-dichloro-pyridin-4-yl)-4-difluoromethoxy-8-nitro-dibenzo[b,d]furane-1-carboxamide

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl-formamide at 25 - 35℃; for 1.83333 - 1.91667h;86%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

3,4-bis(cyclopropylmethoxy)benzoyl chloride
669001-67-6

3,4-bis(cyclopropylmethoxy)benzoyl chloride

3,4-bis(cyclopropylmethoxy)-N-(3,5-dichloropyridin-4-yl) benzamide

3,4-bis(cyclopropylmethoxy)-N-(3,5-dichloropyridin-4-yl) benzamide

Conditions
ConditionsYield
With sodium hydride In acetonitrile at -5 - 0℃; for 1h;85.3%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

C17H10F2N2O2S

C17H10F2N2O2S

3,5-dichloro-4-(4-difluoromethoxy-dibenzo[b,d]-thiophen-1-yl-carboxamido)pyridine

3,5-dichloro-4-(4-difluoromethoxy-dibenzo[b,d]-thiophen-1-yl-carboxamido)pyridine

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With sodium hydride In DMF (N,N-dimethyl-formamide) at 20℃; for 0.5h;
Stage #2: C17H10F2N2O2S In DMF (N,N-dimethyl-formamide)
85%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

3-cyclopentyloxy-4-methoxy benzoic acid chloride
144036-19-1

3-cyclopentyloxy-4-methoxy benzoic acid chloride

piclamilast
144035-83-6

piclamilast

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With potassium tert-butylate In toluene at 90℃; Green chemistry;
Stage #2: 3-cyclopentyloxy-4-methoxy benzoic acid chloride In toluene for 1h; Reagent/catalyst; Temperature; Solvent; Reflux; Green chemistry;
84%
With sodium hydride 1.) THF, 0.25 h, 2.) THF, RT, 0.5 h; Yield given. Multistep reaction;
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

7-methoxy-2-phenethyl-benzofuran-4-carbonyl chloride

7-methoxy-2-phenethyl-benzofuran-4-carbonyl chloride

7-methoxy-2-phenethyl-benzofuran-4-carboxylic acid (3,5-dichloropyridin-4-yl)-amide

7-methoxy-2-phenethyl-benzofuran-4-carboxylic acid (3,5-dichloropyridin-4-yl)-amide

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With sodium aluminum diethyl dihydride In tetrahydrofuran; toluene at 50℃; for 1h; Metallation;
Stage #2: 7-methoxy-2-phenethyl-benzofuran-4-carbonyl chloride In tetrahydrofuran; toluene at 50℃; for 2h; Acylation;
80%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

4-(difluoromethoxy)benzoyl chloride
57320-63-5

4-(difluoromethoxy)benzoyl chloride

N-(3,5-dichloro-4-pyridyl)-4-(difluoromethoxy)benzamide

N-(3,5-dichloro-4-pyridyl)-4-(difluoromethoxy)benzamide

Conditions
ConditionsYield
With potassium tert-butylate In tetrahydrofuran at 20℃; for 3h; Reagent/catalyst;80%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-1,2,4-triazol-1-yl)methanone
1601300-21-3

(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-1,2,4-triazol-1-yl)methanone

roflumilast
162401-32-3

roflumilast

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With cesium fluoride In dimethyl sulfoxide at 90℃; for 3h;
Stage #2: (3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-1,2,4-triazol-1-yl)methanone In dimethyl sulfoxide at 90 - 95℃; for 3h;
79%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

4-methoxy-2-methylsulfanylpyrimidine-5-carboxylic acid
84332-06-9

4-methoxy-2-methylsulfanylpyrimidine-5-carboxylic acid

N-(3,5-dichloropyridin-4-yl)-4-methoxy-2-(methylthio)pyrimidine-5-carboxamide

N-(3,5-dichloropyridin-4-yl)-4-methoxy-2-(methylthio)pyrimidine-5-carboxamide

Conditions
ConditionsYield
Stage #1: 4-methoxy-2-methylsulfanylpyrimidine-5-carboxylic acid With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 0 - 20℃; for 5h;
Stage #2: 3,5-dichloro-4-aminopyridine With sodium hydride In dichloromethane; N,N-dimethyl-formamide at 0 - 20℃; for 2h;
75.06%
2-(cyclopentyloxy)-4-iodo-1-methoxybenzene
651023-32-4

2-(cyclopentyloxy)-4-iodo-1-methoxybenzene

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

13C-methyldiphenylsilanecarboxylic acid
1346220-47-0

13C-methyldiphenylsilanecarboxylic acid

C17(13)CH18Cl2N2O3
1346220-48-1

C17(13)CH18Cl2N2O3

Conditions
ConditionsYield
Stage #1: 13C-methyldiphenylsilanecarboxylic acid With potassium fluoride In toluene at 70℃; Inert atmosphere;
Stage #2: 2-(cyclopentyloxy)-4-iodo-1-methoxybenzene; 3,5-dichloro-4-aminopyridine With palladium diacetate; 1,8-diazabicyclo[5.4.0]undec-7-ene; catacxium A In toluene at 70℃; for 21h; Inert atmosphere;
74%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzaldehyde
151103-09-2

3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzaldehyde

3,5-dichloro-N-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzylidene)pyridin-4-amine
1454574-39-0

3,5-dichloro-N-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzylidene)pyridin-4-amine

Conditions
ConditionsYield
Stage #1: 3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzaldehyde With trifluoroacetic acid; trimethyl orthoformate In toluene at 20 - 30℃; Inert atmosphere; Reflux;
Stage #2: 3,5-dichloro-4-aminopyridine With trifluoroacetic acid In toluene at 40 - 110℃;
73%
Stage #1: 3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzaldehyde With toluene-4-sulfonic acid; trimethyl orthoformate In toluene for 3h; Reflux;
Stage #2: 3,5-dichloro-4-aminopyridine With toluene-4-sulfonic acid In toluene at 70 - 80℃; for 30h; Reflux;
23%
With N,O-Bis(trimethylsilyl)trifluoroacetamide; toluene-4-sulfonic acid In acetonitrile for 48h; Reagent/catalyst; Reflux;70 %Chromat.
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

tert-butyl 4-(4-(2,5-dichloro-4-pyrimidinyl)amino-5-isopropoxy-2-methylphenyl)piperidine-1-carboxylate

tert-butyl 4-(4-(2,5-dichloro-4-pyrimidinyl)amino-5-isopropoxy-2-methylphenyl)piperidine-1-carboxylate

5-chloro-N2(3,5-dichloropyridin-4-yl)-N4(2-isopropoxy-5-methyl-4-(piperidin-4-yl)phenyl)pyrimidine-2,4-diamine

5-chloro-N2(3,5-dichloropyridin-4-yl)-N4(2-isopropoxy-5-methyl-4-(piperidin-4-yl)phenyl)pyrimidine-2,4-diamine

Conditions
ConditionsYield
With hydrogenchloride In water; isopropyl alcohol at 80℃;72.9%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

1-(4-fluorobenzyl)-7-azaindol-3-yl-glycoxylic acid chloride

1-(4-fluorobenzyl)-7-azaindol-3-yl-glycoxylic acid chloride

AWD-12-353

AWD-12-353

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With sodium hydride In tetrahydrofuran at -5 - 20℃; for 1h;
Stage #2: 1-(4-fluorobenzyl)-7-azaindol-3-yl-glycoxylic acid chloride In tetrahydrofuran at 0℃; for 4h; Product distribution / selectivity; Reflux;
72%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

C49H77N5O15S
1006612-69-6

C49H77N5O15S

C54H79Cl2N7O14S
1006612-25-4

C54H79Cl2N7O14S

Conditions
ConditionsYield
With water; sodium hydride; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at -5 - 25℃; for 4h;70%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

bis(trichloromethyl) carbonate
32315-10-9

bis(trichloromethyl) carbonate

4-amino-6-(3-bromophenyl)-2-ethylpyridazin-3(2H)-one
1229442-28-7

4-amino-6-(3-bromophenyl)-2-ethylpyridazin-3(2H)-one

1-(6-(3-bromophenyl)-2-ethyl-3-oxo-2,3-dihydropyridazin-4-yl)-3-(3,5-dichloropyridin-4-yl)urea
1229442-29-8

1-(6-(3-bromophenyl)-2-ethyl-3-oxo-2,3-dihydropyridazin-4-yl)-3-(3,5-dichloropyridin-4-yl)urea

Conditions
ConditionsYield
Stage #1: bis(trichloromethyl) carbonate; 4-amino-6-(3-bromophenyl)-2-ethylpyridazin-3(2H)-one With triethylamine In dichloromethane for 3h; Inert atmosphere;
Stage #2: 3,5-dichloro-4-aminopyridine With sodium hydride In tetrahydrofuran at 20℃;
70%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

3,4,5-Trimethoxybenzoyl chloride
4521-61-3

3,4,5-Trimethoxybenzoyl chloride

N-(3,5-dichloropyridin-4-yl)-3,4,5-trimethoxybenzamide
1349175-46-7

N-(3,5-dichloropyridin-4-yl)-3,4,5-trimethoxybenzamide

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With potassium 2-methylbutan-2-olate In toluene at 90℃; for 0.5h;
Stage #2: for 0.5h; Reflux;
Stage #3: 3,4,5-Trimethoxybenzoyl chloride Further stages;
70%
Stage #1: 3,5-dichloro-4-aminopyridine With sodium hydride In tetrahydrofuran at 0 - 20℃; for 2h; Inert atmosphere;
Stage #2: 3,4,5-Trimethoxybenzoyl chloride In tetrahydrofuran at 0 - 20℃; for 24h; Inert atmosphere;
54%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

C16H10F3N3O5
1009603-03-5

C16H10F3N3O5

7-methoxy-2-trifluoromethylpyrazolo[1,5-a]pyridine-4-carboxylic acid (3,5-dichloro pyridin-4-yl)amide
1009601-54-0

7-methoxy-2-trifluoromethylpyrazolo[1,5-a]pyridine-4-carboxylic acid (3,5-dichloro pyridin-4-yl)amide

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 0.5h;
Stage #2: C16H10F3N3O5 In N,N-dimethyl-formamide at 0 - 20℃; for 3h;
70%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

C16H10F3N3O5

C16H10F3N3O5

N-(3,5-dichloropyridin-4-yl)-7-methoxy-2-(trifluoromethyl)pyrazolo[1,5-a]pyridine-3-carboxamide
1454802-94-8

N-(3,5-dichloropyridin-4-yl)-7-methoxy-2-(trifluoromethyl)pyrazolo[1,5-a]pyridine-3-carboxamide

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 0.5h;
Stage #2: C16H10F3N3O5 In N,N-dimethyl-formamide at 0 - 20℃; for 3h;
70%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

methyl 4-(5-((3,5-dichloropyridin-4-yl)carbamoyl)-2-(difluoromethoxy)phenoxy)benzoate
1422361-57-6

methyl 4-(5-((3,5-dichloropyridin-4-yl)carbamoyl)-2-(difluoromethoxy)phenoxy)benzoate

Conditions
ConditionsYield
70%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

C13H10BrN3O2

C13H10BrN3O2

1-(6-(3-bromophenyl)-2-ethyl-3-oxo-2,3-dihydropyridazin-4-yl)-3-(3,5-dichloropyridin-4-yl)urea
1229442-29-8

1-(6-(3-bromophenyl)-2-ethyl-3-oxo-2,3-dihydropyridazin-4-yl)-3-(3,5-dichloropyridin-4-yl)urea

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With sodium hydride In tetrahydrofuran for 2.5h;
Stage #2: C13H10BrN3O2 In tetrahydrofuran at 20℃;
70%
3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

2-benzyl-7-methoxy-benzofuran-4-carbonyl chloride

2-benzyl-7-methoxy-benzofuran-4-carbonyl chloride

2-benzyl-7-methoxy-benzofuran-4-carboxylic acid (3,5-dichloropyridin-4-yl)-amide

2-benzyl-7-methoxy-benzofuran-4-carboxylic acid (3,5-dichloropyridin-4-yl)-amide

Conditions
ConditionsYield
Stage #1: 3,5-dichloro-4-aminopyridine With sodium aluminum diethyl dihydride In tetrahydrofuran; toluene at 50℃; for 1h; Metallation;
Stage #2: 2-benzyl-7-methoxy-benzofuran-4-carbonyl chloride In tetrahydrofuran; toluene at 50℃; for 2h; Acylation;
67%
cis,trans-2,5-dimethoxytetrahydrofuran
696-59-3

cis,trans-2,5-dimethoxytetrahydrofuran

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

3,5-dichloro-4-(1H-pyrrol-1-yl)pyridine

3,5-dichloro-4-(1H-pyrrol-1-yl)pyridine

Conditions
ConditionsYield
With acetic acid at 120℃; for 0.333333h; Inert atmosphere;63%

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