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inquiry2,5-Dibromo-1,4-phenylenediamine CAS:25462-61-7 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 quality
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inquiry2,5-Dibromo-1,4-benzenediamine; 2,5-Dibromo-1,4-phenylenediamine; 1,4-BenzenediaMine, 2,5-dibroMo-; 1,4-Diamino-2,5-dibromobenzene; ,5-Dibromo-p-phenylenediamine; 2,5-dibromobenzene-1,4-diamine CAS No.: 25462-61-7 Molecular formula: C6H6Br2N2
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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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inquiry★.Best quality according to requirement ★.Competitive price in China market ★.Mature Technical support ★.Professional logistic support
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inquiryWe 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
high purity 2,5-dibromobenzene-1,4-diamine Application:high purity 2,5-dibromobenzene-1,4-diamine
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
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inquiry25462-61-7 Application:intermediate
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inquiryhigh purity 2,5-dibromobenzene-1,4-diamineAppearance:yellow solid Storage:Airtight save Application:organic chemical Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by sea LCL/FCL for l
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inquiry2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
With methanol; sodium hydroxide at 80℃; for 6h; Temperature; | 90.84% |
2,5-dibromo-4-nitroaniline
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
With hydrogenchloride; tin In ethanol; water at 0 - 20℃; for 16h; Inert atmosphere; | 88% |
With hydrogenchloride; tin In ethanol; water at 20℃; for 12h; Inert atmosphere; | 66% |
1,4-dibromo-2,5-bisnitrobenzene
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
With hydrogenchloride; tin |
N-(2,5-dibromo-4-nitrophenyl)acetamide
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
With hydrogenchloride; tin(ll) chloride In ethanol Heating; Yield given; | |
Multi-step reaction with 2 steps 1: hydrogenchloride; water / 32 h / Reflux 2: hydrogenchloride; tin / water; ethanol / 12 h / 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: hydrogenchloride / water / 41 h / Reflux; Inert atmosphere 2: hydrogenchloride; tin / water; ethanol / 16 h / 0 - 20 °C / Inert atmosphere View Scheme |
hydrogenchloride
1,4-dibromo-2,5-bisnitrobenzene
2,5-dibromo-1,4-phenylenediamine
A
hydrogenchloride
B
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
beim Erhitzen; |
1.4-dibromobenzene
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: HNO3+H2SO4 2: tin; hydrochloric acid View Scheme | |
Multi-step reaction with 6 steps 1: nitric acid; sulfuric acid / dichloromethane / 40 °C / Cooling with ice 2: tin(II) chloride dihdyrate / ethanol / 4 h / 80 °C 3: triethylamine / ethyl acetate / 2 h / 70 °C 4: nitric acid; sulfuric acid / 0.67 h / 30 °C 5: acetic acid; iron / 2 h / 100 °C 6: sodium hydroxide; methanol / 6 h / 80 °C View Scheme |
N-(2,5-dibromophenyl)acetamide
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: sulfuric acid; nitric acid / water / 2 h / 10 °C / Cooling with ice 2: hydrogenchloride; water / 32 h / Reflux 3: hydrogenchloride; tin / water; ethanol / 12 h / 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 3 steps 1: sulfuric acid; nitric acid / water / 2 h / 6 °C / Inert atmosphere 2: hydrogenchloride / water / 41 h / Reflux; Inert atmosphere 3: hydrogenchloride; tin / water; ethanol / 16 h / 0 - 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 3 steps 1: nitric acid; sulfuric acid / 0.67 h / 30 °C 2: acetic acid; iron / 2 h / 100 °C 3: sodium hydroxide; methanol / 6 h / 80 °C View Scheme |
2,5-dibromoaniline
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: water / 12 h / Reflux; Inert atmosphere 2: sulfuric acid; nitric acid / water / 2 h / 6 °C / Inert atmosphere 3: hydrogenchloride / water / 41 h / Reflux; Inert atmosphere 4: hydrogenchloride; tin / water; ethanol / 16 h / 0 - 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 4 steps 1: triethylamine / ethyl acetate / 2 h / 70 °C 2: nitric acid; sulfuric acid / 0.67 h / 30 °C 3: acetic acid; iron / 2 h / 100 °C 4: sodium hydroxide; methanol / 6 h / 80 °C View Scheme |
1,4-dibromo-2-nitrobenzene
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: tin(II) chloride dihdyrate / ethanol / 4 h / 80 °C 2: triethylamine / ethyl acetate / 2 h / 70 °C 3: nitric acid; sulfuric acid / 0.67 h / 30 °C 4: acetic acid; iron / 2 h / 100 °C 5: sodium hydroxide; methanol / 6 h / 80 °C View Scheme |
2,5-dibromo-1,4-phenylenediamine
trimethylsilylacetylene
Conditions | Yield |
---|---|
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine; triphenylphosphine at 80℃; for 26h; Inert atmosphere; | 98% |
With copper diacetate; triphenylphosphine; palladium dichloride In triethylamine at 85℃; for 8h; Inert atmosphere; | 60% |
Thien-3-ylboronic acid
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); potassium carbonate; tri tert-butylphosphoniumtetrafluoroborate In tetrahydrofuran at 80℃; for 16h; Suzuki-Miyaura Coupling; Inert atmosphere; | 91% |
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromo-1,4-phenylenediamine With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: 7-(bromomethyl)pentadecane In tetrahydrofuran; hexane at 40℃; Inert atmosphere; | 85% |
Conditions | Yield |
---|---|
With 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0); sodium t-butanolate In toluene at 120℃; | 84.6% |
2,5-dibromo-1,4-phenylenediamine
benzenesulfenyl chloride
Conditions | Yield |
---|---|
With pyridine In dichloromethane | 83% |
2,5-dibromo-1,4-phenylenediamine
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-methylthiophene
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); potassium carbonate; XPhos In tetrahydrofuran; water at 80℃; Suzuki Coupling; Inert atmosphere; | 82.1% |
2,5-dibromo-1,4-phenylenediamine
1,4-dibromo-2,5-bisnitrobenzene
Conditions | Yield |
---|---|
With trifluoroacetyl peroxide In dichloromethane at -5 - 5℃; for 6h; | 80% |
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In 1,4-dioxane; water at 100℃; for 24h; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique; Darkness; | 74% |
pyridine-2-carbaldehyde
2,5-dibromo-1,4-phenylenediamine
2,5-dibromo-N,N-bis(pyridine-2-ylmethylene)benzene-1,4-diamine
Conditions | Yield |
---|---|
In ethanol for 2h; Reflux; | 73% |
1-bromo-hexane
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromo-1,4-phenylenediamine With sodium hydride In tetrahydrofuran at 0℃; for 0.166667h; Schlenk technique; Stage #2: 1-bromo-hexane In tetrahydrofuran at 0 - 40℃; for 14h; Schlenk technique; | 70% |
2,5-dibromo-1,4-phenylenediamine
N-methylaniline
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromo-1,4-phenylenediamine With hydrogenchloride In acetonitrile at 20℃; Stage #2: With sodium nitrite In water; acetonitrile at 0℃; Stage #3: N-methylaniline at 0 - 20℃; pH=< 7 - < 8; | 69% |
2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-hexylthiophene
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Stage #1: 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-hexylthiophene; 2,5-dibromo-1,4-phenylenediamine With caesium carbonate In ethanol; water; toluene for 0.5h; Inert atmosphere; Schlenk technique; Stage #2: With tetrakis(triphenylphosphine) palladium(0) In ethanol; water; toluene at 80℃; Suzuki Coupling; Inert atmosphere; Schlenk technique; | 66% |
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In ethanol; water; toluene at 80℃; Suzuki Coupling; Schlenk technique; Inert atmosphere; | 66% |
2,5-dibromo-1,4-phenylenediamine
phenylacetylene
2,6-diphenyl-1,5-dihydropyrrolo[2,3-f]indole
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromo-1,4-phenylenediamine; phenylacetylene With (1,10-phenanthroline)bis(triphenylphosphine)copper(I) nitrate; caesium carbonate In toluene at 110℃; for 24h; Inert atmosphere; Stage #2: With sodium butanolate In toluene at 110℃; for 2h; Inert atmosphere; | 64% |
1-bromo-octane
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromo-1,4-phenylenediamine With sodium hydride In tetrahydrofuran; mineral oil for 0.5h; Inert atmosphere; Reflux; Stage #2: 1-bromo-octane In tetrahydrofuran; mineral oil at 20℃; for 15h; Inert atmosphere; Reflux; | 64% |
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Stage #1: 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-propylthiophene; 2,5-dibromo-1,4-phenylenediamine With caesium carbonate In ethanol; water; toluene for 0.75h; Inert atmosphere; Schlenk technique; Stage #2: With tetrakis(triphenylphosphine) palladium(0) In ethanol; water; toluene at 80℃; Suzuki Coupling; Inert atmosphere; Schlenk technique; | 63% |
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In ethanol; water; toluene at 80℃; Schlenk technique; Inert atmosphere; | 63% |
fur-2-ylboronic acid
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Stage #1: fur-2-ylboronic acid; 2,5-dibromo-1,4-phenylenediamine With caesium carbonate In ethanol; water; toluene for 0.5h; Inert atmosphere; Schlenk technique; Stage #2: With tetrakis(triphenylphosphine) palladium(0) In ethanol; water; toluene at 80℃; Suzuki Coupling; Inert atmosphere; Schlenk technique; | 60% |
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In ethanol; water; toluene at 80℃; Suzuki Coupling; Schlenk technique; Inert atmosphere; |
Conditions | Yield |
---|---|
With hydrogenchloride In water for 12h; Inert atmosphere; Reflux; | 59.6% |
2,5-dibromo-1,4-phenylenediamine
2-thiopheneboronic acid pinacol ester
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromo-1,4-phenylenediamine; 2-thiopheneboronic acid pinacol ester With caesium carbonate In ethanol; water; toluene for 0.5h; Inert atmosphere; Schlenk technique; Stage #2: With tetrakis(triphenylphosphine) palladium(0) In ethanol; water; toluene at 80℃; Suzuki Coupling; Inert atmosphere; Schlenk technique; | 59% |
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In ethanol; water; toluene at 80℃; Suzuki Coupling; Inert atmosphere; Schlenk technique; | 59% |
2,5-dibromo-1,4-phenylenediamine
3,5-dimethoxyphenylboronic acid
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); potassium carbonate; tri tert-butylphosphoniumtetrafluoroborate In tetrahydrofuran at 80℃; for 15h; Inert atmosphere; | 39% |
2,5-dibromo-1,4-phenylenediamine
p-tert-butyl benzoyl chloride
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; | 31.9% |
With triethylamine In tetrahydrofuran at 0 - 20℃; for 12h; | 31.9% |
benzo[b]thiophene-2-boronic acid
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
Stage #1: benzo[b]thiophene-2-boronic acid; 2,5-dibromo-1,4-phenylenediamine With caesium carbonate In ethanol; water; toluene for 0.666667h; Inert atmosphere; Schlenk technique; Stage #2: With tetrakis(triphenylphosphine) palladium(0) In ethanol; water; toluene at 80℃; Suzuki Coupling; Inert atmosphere; Schlenk technique; | 14% |
benzo[b]thiophene-2-boronic acid
2,5-dibromo-1,4-phenylenediamine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In ethanol; water; toluene at 80℃; Suzuki Coupling; Schlenk technique; Inert atmosphere; | 14% |
2,5-dibromo-1,4-phenylenediamine
phenylacetylene
1,4-diamino-2,5-bis(phenylethynyl)benzene
Conditions | Yield |
---|---|
With copper diacetate; triphenylphosphine; palladium dichloride In triethylamine at 85℃; for 8h; Inert atmosphere; | 13% |
2,5-dibromo-1,4-phenylenediamine
2,5-dibromo-1,4-benzoquinone
Conditions | Yield |
---|---|
Oxydation; |
di-tert-butyl dicarbonate
2,5-dibromo-1,4-phenylenediamine
di(tert‐butyl) (2,5‐dibromo‐1,4‐phenylene)dicarbamate
Conditions | Yield |
---|---|
With sodium hydride 1.) THF, reflux, 0.5 h, 2.) THF, reflux, 14 h; Yield given. Multistep reaction; |
2,5-dibromo-1,4-phenylenediamine
2,5-dibromo-1,4-benzoquinone
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