As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:2457-76-3
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inquiryProduct description: Product name 4-Amino-2-chlorobenzoic acid CAS number 2457-76-3 Assay ≥99% Appearance Light yellow powder Capacity 200mt/year Application Pharmaceutical i
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inquiryAppearance:White or almost white powder Storage:R.T Package:25kg/drum Application:Pharmaceutical intermediates Transportation:Express/Sea/Air Port:Any port in China
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Min.Order:1 Kilogram
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Min.Order:100 Gram
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Min.Order:1 Gram
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Min.Order:1 Gram
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Min.Order:1 Kilogram
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Min.Order:10 Gram
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Min.Order:10 Gram
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inquiryProduct name: 2-Chloro-4-Amino Benzoic Acid CAS No.: 2457-76-3 Molecule Formula:C7H5ClNO2 Molecule Weight:170.57 Purity: 99.0% Package: 25kg/drum Description:White to off-white powder Manufacture Standards:Enterprise Standard TES
Cas:2457-76-3
Min.Order:1 Kilogram
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inquiryName: 4-Amino-2-chlorobenzoic acid Synonyms: 2-Chloro-4-Aminobenzoic Acid CAS: 2457-76-3 MF: C7H5ClNO2 Appearance: White powder Storage:Store in cool and dry place, away from sun light. Package:25KG/Drum Application:Pharmaceutical Intermediate
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Min.Order:1 Metric Ton
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inquiryhigh 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
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In ethyl acetate at 20℃; under 760 Torr; | 98% |
With isopropyl alcohol; potassium hydroxide at 20℃; for 2.5h; Catalytic behavior; | 88% |
With iron; ammonium chloride In ethanol; water for 2h; Reflux; | 24% |
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
With Wilkinson's catalyst; hydrogen; dihydrogen peroxide at 20 - 70℃; under 3800.26 - 7600.51 Torr; for 13h; Temperature; | 93.6% |
4-Acetylamino-2-chlorobenzoic acid
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
With hydrogenchloride |
Conditions | Yield |
---|---|
Hydrogenation; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aqueous nitric acid / 120 - 180 °C 2: tin (II)-chloride; aqueous hydrochloric acid View Scheme | |
Multi-step reaction with 4 steps 1: bromine / 130 - 135 °C 2: Pb(NO3)2; water 3: KMnO4 4: aqueous ammonia; iron sulfate(II) hydrate View Scheme | |
Multi-step reaction with 2 steps 1: aqueous nitric acid / 120 - 180 °C 2: palladium; ethyl acetate / Hydrogenation View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: carbon disulfide; aluminium chloride 2: potassium permanganate; diluted sulfuric acid; magnesium sulfate 3: hydrochloric acid View Scheme |
acetic acid-(3-chloro-4-chloroacetyl-anilide)
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: potassium permanganate; diluted sulfuric acid; magnesium sulfate 2: hydrochloric acid View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: KMnO4 2: aqueous ammonia; iron sulfate(II) hydrate View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: KMnO4 2: aqueous ammonia; iron sulfate(II) hydrate View Scheme |
1-(bromomethyl)-2-chloro-4-nitrobenzene
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: Pb(NO3)2; water 2: KMnO4 3: aqueous ammonia; iron sulfate(II) hydrate View Scheme |
6-chloro-2-fluoro-9-isopropyl-9H-purine
4-amino-2-chlorobenzoic acid
2-chloro-4-(2-fluoro-9-isopropyl-9H-purin-6-ylamino)benzoic acid
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In butan-1-ol at 80℃; for 12h; | 100% |
Conditions | Yield |
---|---|
With thionyl chloride at 0 - 20℃; for 32h; | 98% |
With thionyl chloride at 0℃; Heating / reflux; | 97.4% |
With acetyl chloride for 18h; Heating / reflux; | 97% |
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With dihydrogen peroxide In water at 40 - 50℃; for 3h; Ionic liquid; Stage #2: With potassium fluoride In water at 40 - 50℃; for 3h; Temperature; | 97.5% |
4-amino-2-chlorobenzoic acid
acetyl chloride
methyl 4-amino-2-chlorobenzoate
Conditions | Yield |
---|---|
In methanol for 18h; Heating / reflux; | 97% |
4-amino-2-chlorobenzoic acid
1,1'-Thiocarbonyldiimidazole
4-isothiocyanato-2-chlorobenzoic acid
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid; 1,1'-Thiocarbonyldiimidazole With triethylamine In dichloromethane at 10℃; for 1h; Cooling with ice; Stage #2: With hydrogenchloride In dichloromethane; water at 10℃; for 1h; Cooling with ice; | 91% |
4-amino-2-chlorobenzoic acid
4-isothiocyanato-2-chlorobenzoic acid
Conditions | Yield |
---|---|
Stage #1: thiocarbonyldiimidazole; 4-amino-2-chlorobenzoic acid With triethylamine In dichloromethane at 0 - 10℃; for 1h; Cooling with ice; Stage #2: With hydrogenchloride In dichloromethane; water at 10℃; for 1h; | 91% |
Conditions | Yield |
---|---|
With hydrogenchloride; hydroxylamine hydrochloride; sodium sulfate In water for 0.333333h; Heating / reflux; | 90% |
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
In acetonitrile for 20h; Reflux; | 90% |
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In tetrahydrofuran; N,N-dimethyl-formamide at 20℃; for 48h; | 84% |
C11H7ClN4OS
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 20℃; | 83% |
Conditions | Yield |
---|---|
With sodium carbonate; N-ethyl-N,N-diisopropylamine In 1,4-dioxane; water at 0℃; for 16h; | 83% |
4-amino-2-chlorobenzoic acid
4-amino-2-chloro-benzamide
Conditions | Yield |
---|---|
With ammonium chloride; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In DMF (N,N-dimethyl-formamide) at 20℃; | 79% |
Octanal
4-amino-2-chlorobenzoic acid
4-(octylamino)-2-chlorobenzoic acid
Conditions | Yield |
---|---|
With α-picoline-borane In methanol at 20℃; | 78% |
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
With acetic acid In acetonitrile at 90℃; for 15h; | 75.5% |
With acetic acid In acetonitrile at 90℃; for 15h; Inert atmosphere; | 75.5% |
With acetic acid In acetonitrile at 90℃; for 15h; | 75.5% |
With acetic acid In acetonitrile at 90℃; for 15h; | 530 mg |
4-amino-2-chlorobenzoic acid
2-amino-benzenethiol
2-(4-Amino-2-chlorophenyl)benzothiazole
Conditions | Yield |
---|---|
With polyphosphoric acid for 0.5h; Microwave irradiation; | 75% |
With PPA at 140℃; for 24h; | |
With PPA at 185℃; |
C7H4ClN2O2(1+)
4-amino-2-chlorobenzoic acid
4-Bromo-2-chloro-benzoic Acid
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With hydrogen bromide In water at 120℃; for 1h; Stage #2: BrH*C7H6ClNO2 With sodium nitrite In water at 5℃; Stage #3: C7H4ClN2O2(1+) With hydrogen bromide; copper(I) bromide In water at 0℃; Heating / reflux; | 73% |
o-phenylbenzoyl chloride
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With pyridine; chloro-trimethyl-silane In toluene at 5℃; for 0.5h; Stage #2: o-phenylbenzoyl chloride In toluene at 5℃; for 2.5h; Stage #3: With hydrogenchloride; water In ethanol at 35 - 85℃; | 69% |
Stage #1: 4-amino-2-chlorobenzoic acid With pyridine In toluene at 20℃; for 0.25h; Stage #2: With chloro-trimethyl-silane In toluene at 5℃; for 0.5h; Stage #3: o-phenylbenzoyl chloride With hydrogenchloride; ethanol; water more than 3 stages; |
4-amino-2-chlorobenzoic acid
2-(carbomethoxy)thiophene-3-sulfonyl chloride
Conditions | Yield |
---|---|
With pyridine at 50℃; for 24h; | 68% |
(Z)-3-chloro-N'-hydroxy-4-isopropoxybenzimidamide
4-amino-2-chlorobenzoic acid
3-chloro-4-(3-(3-chloro-4-isopropoxyphenyl)-1,2,4-oxadiazol-5-yl)aniline
Conditions | Yield |
---|---|
With benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; dicyclohexyl-carbodiimide In acetonitrile at 120℃; for 0.5h; microwave irradiation; | 67.1% |
With benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; dicyclohexyl-carbodiimide In acetonitrile at 120℃; for 0.5h; Microwave irradiation; |
N,N'-bis(dimethylaminomethylene)hydrazine
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
With trifluoroacetic anhydride In toluene for 8h; Reflux; | 64% |
4-amino-2-chlorobenzoic acid
dimethyl sulfate
methyl 4-amino-2-chlorobenzoate
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With lithium hydroxide In tetrahydrofuran at 20℃; for 0.333333h; Stage #2: dimethyl sulfate In tetrahydrofuran for 2h; Heating / reflux; | 62% |
Conditions | Yield |
---|---|
Stage #1: isonipecotic acid methyl ester; 4-amino-2-chlorobenzoic acid With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h; Inert atmosphere; Stage #2: With HATU In dichloromethane for 10h; Inert atmosphere; | 61.3% |
Stage #1: isonipecotic acid methyl ester; 4-amino-2-chlorobenzoic acid With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h; Stage #2: With N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane for 10h; | 61.3% |
Stage #1: isonipecotic acid methyl ester; 4-amino-2-chlorobenzoic acid With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h; Inert atmosphere; Stage #2: With N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane for 10h; | 61.3% |
Stage #1: isonipecotic acid methyl ester; 4-amino-2-chlorobenzoic acid With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h; Stage #2: With HATU In dichloromethane for 10h; | 61.3% |
Stage #1: isonipecotic acid methyl ester; 4-amino-2-chlorobenzoic acid With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h; Stage #2: With HATU In dichloromethane for 10h; | 61.3% |
4-amino-2-chlorobenzoic acid
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With hydrogenchloride; sodium nitrate for 0.5h; cooling; Stage #2: With hydrogenchloride; tin(ll) chloride at 5℃; for 1h; | 57% |
Stage #1: 4-amino-2-chlorobenzoic acid With hydrogenchloride; sodium nitrite In water at 0℃; for 5.08333h; Stage #2: With hydrogenchloride; tin(ll) chloride In water at 0 - 20℃; for 64h; | |
Stage #1: 4-amino-2-chlorobenzoic acid With hydrogenchloride In water for 0.5h; Cooling with ice; Stage #2: With sodium nitrite In water for 1h; Cooling; Stage #3: With hydrogenchloride; tin(II) chloride hydrate In water at 20℃; | |
Stage #1: 4-amino-2-chlorobenzoic acid With hydrogenchloride; sodium nitrite In water at 0℃; for 1h; Stage #2: With hydrogenchloride; tin(ll) chloride In water at 0 - 20℃; |
hexamethylene imine
4-amino-2-chlorobenzoic acid
4-(azepan-1-ylcarbonyl)-3-chloroaniline
Conditions | Yield |
---|---|
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 3h; | 57% |
4-amino-2-chlorobenzoic acid
4-amino-2-chloro-benzyl alcohol
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With lithium aluminium tetrahydride In tetrahydrofuran at 0 - 20℃; Heating / reflux; Stage #2: With sodium hydroxide In tetrahydrofuran; water at 0 - 20℃; for 1h; | 56% |
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With sulfuric acid; sodium nitrite In water at 0℃; Stage #2: Allyl acetate With titanium(III) chloride; iron(II) sulfate In methanol; water at 0℃; for 0.5h; | 55% |
Stage #1: 4-amino-2-chlorobenzoic acid With sulfuric acid; sodium nitrite In water at 0℃; Stage #2: Allyl acetate With iron(II) sulfate; titanium(III) chloride In methanol; water at 0℃; for 0.5h; | 55% |
1-[4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl]-methylamine
4-amino-2-chlorobenzoic acid
4-amino-2-chloro-N-[4-(4-methoxyphenyl)tetrahydropyran-4-ylmethyl]benzamide
Conditions | Yield |
---|---|
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 16h; | 41% |
4-amino-2-chlorobenzoic acid
2-chloro-4-(chlorosulfonyl)benzoic acid
Conditions | Yield |
---|---|
Stage #1: 4-amino-2-chlorobenzoic acid With hydrogenchloride; sodium nitrite In water; acetic acid at -10 - -5℃; for 1h; Stage #2: With sulfur dioxide; copper(l) chloride In acetic acid at 0 - 10℃; for 0.5h; | 34% |
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