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inquiryHigh 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
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inquiryProduct Description Product website: http://www.finerchem.com/pro01en/id/1672.html Product Name 4-Amino-3,5-dichloropyridine CAS No. 22889-78
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inquiry4-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
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inquiryProduct name 4-Amino-3,5-dichloropyridine Cas number 22889-78-7 Molecular formula C5H4Cl2N2 Molecular weight 163 Appearance
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inquiryAdvantages: 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
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inquiryA 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
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inquirySuperior 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
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inquiryProduct 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
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inquiryfactory?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
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inquiry4-aminopyridine
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
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 |
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
With ammonia In methanol at 40 - 45℃; for 4h; Autoclave; | 89.7% |
3,5-dichloropyridine-4-carbonitrile
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
With lithium amide In ammonia 0 deg C to RT; | 54% |
4-amino-3-chloropyridine
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
With hydrogenchloride; dihydrogen peroxide |
3,4,5-trichloropyridine
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
With ammonium hydroxide at 150℃; im Rohr; |
4-amino-3,5-dichloro-pyridine-2-carboxylic acid
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
Erhitzen ueber den Schmelzpunkt; |
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
beim Erhitzen ueber den Schmelzpunkt; |
Conditions | Yield |
---|---|
at 150℃; im Rohr; |
4-aminopyridine
hydrogenchloride
water
dihydrogen peroxide
3,5-dichloro-4-aminopyridine
hydrogenchloride
4-(nitroamino)pyridine
A
4-Chloropyridine
B
3,4,5-trichloropyridine
C
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
at 100℃; |
3-amino-4-chloropyridine
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
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
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aqueous NH3 / 190 °C 2: concentrated aqueous HCl; aqueous H2O2 View Scheme |
3-benzoyloxy-4-methoxybenzoyl chloride
A
3,5-dichloro-4-aminopyridine
B
N-(3,5-dichloropyrid-4-yl)-3-benzoyloxy-4-methoxybenzamide
3,5-dichloro-4-aminopyridine
5-[5-{[(3,5-dichloropyridin-4-yl)amino]carbonyl}-2-(difluoromethoxy) phenoxy]pentanoic acid
Conditions | Yield |
---|---|
With thionyl chloride In tetrahydrofuran; toluene | 96.45% |
3,5-dichloro-4-aminopyridine
2-(3-benzyloxy-propyl)-3,4-dimethoxy-benzoic acid
2-(3-benzyloxy-propyl)-N-(3,5-dichloro-pyridin-4-yl)-3,4-dimethoxy-benzamide
Conditions | Yield |
---|---|
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
3,5-dichloro-4-aminopyridine
roflumilast
Conditions | Yield |
---|---|
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
3-(difluoromethoxy)-4-(cyclopropylmethoxy)-benzoic acid
roflumilast
Conditions | Yield |
---|---|
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
3-Phenylpropionic acid
N-(3,5-dichloropyridin-4-yl)-3-phenylpropanamide
Conditions | Yield |
---|---|
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
4-nitrophenyl 8-methoxy-2,9-dimethyl-1-oxo-1,2,3,4-tetrahydro-β-carboline-5-carboxylate
Conditions | Yield |
---|---|
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
(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-imidazol-1-yl)methanone
roflumilast
Conditions | Yield |
---|---|
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
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
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide at 25 - 35℃; for 1.83333 - 1.91667h; | 86% |
3,5-dichloro-4-aminopyridine
3,4-bis(cyclopropylmethoxy)benzoyl chloride
Conditions | Yield |
---|---|
With sodium hydride In acetonitrile at -5 - 0℃; for 1h; | 85.3% |
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
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
3-cyclopentyloxy-4-methoxy benzoic acid chloride
piclamilast
Conditions | Yield |
---|---|
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
Conditions | Yield |
---|---|
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
4-(difluoromethoxy)benzoyl chloride
Conditions | Yield |
---|---|
With potassium tert-butylate In tetrahydrofuran at 20℃; for 3h; Reagent/catalyst; | 80% |
3,5-dichloro-4-aminopyridine
(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)(1H-1,2,4-triazol-1-yl)methanone
roflumilast
Conditions | Yield |
---|---|
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
4-methoxy-2-methylsulfanylpyrimidine-5-carboxylic acid
Conditions | Yield |
---|---|
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
3,5-dichloro-4-aminopyridine
13C-methyldiphenylsilanecarboxylic acid
C17(13)CH18Cl2N2O3
Conditions | Yield |
---|---|
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
3-(cyclopropylmethoxy)-4-(difluoromethoxy)-benzaldehyde
3,5-dichloro-N-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzylidene)pyridin-4-amine
Conditions | Yield |
---|---|
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
Conditions | Yield |
---|---|
With hydrogenchloride In water; isopropyl alcohol at 80℃; | 72.9% |
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
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
bis(trichloromethyl) carbonate
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
Conditions | Yield |
---|---|
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
3,4,5-Trimethoxybenzoyl chloride
N-(3,5-dichloropyridin-4-yl)-3,4,5-trimethoxybenzamide
Conditions | Yield |
---|---|
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
C16H10F3N3O5
7-methoxy-2-trifluoromethylpyrazolo[1,5-a]pyridine-4-carboxylic acid (3,5-dichloro pyridin-4-yl)amide
Conditions | Yield |
---|---|
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
N-(3,5-dichloropyridin-4-yl)-7-methoxy-2-(trifluoromethyl)pyrazolo[1,5-a]pyridine-3-carboxamide
Conditions | Yield |
---|---|
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
methyl 4-(5-((3,5-dichloropyridin-4-yl)carbamoyl)-2-(difluoromethoxy)phenoxy)benzoate
Conditions | Yield |
---|---|
70% |
3,5-dichloro-4-aminopyridine
1-(6-(3-bromophenyl)-2-ethyl-3-oxo-2,3-dihydropyridazin-4-yl)-3-(3,5-dichloropyridin-4-yl)urea
Conditions | Yield |
---|---|
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
Conditions | Yield |
---|---|
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
3,5-dichloro-4-aminopyridine
Conditions | Yield |
---|---|
With acetic acid at 120℃; for 0.333333h; Inert atmosphere; | 63% |
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