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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

Pharmaceutical Grade CAS 25462-61-7 with competitive price

Cas:25462-61-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

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

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

2,5-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

2,5-Dibromo-1,4-phenylenediamine CAS:25462-61-7

Cas:25462-61-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

1,4-Benzenediamine, 2,5-dibromo-

Cas:25462-61-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

1,4-Benzenediamine, 2,5-dibromo-

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development 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 chemi

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

2,5-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

1,4-Benzenediamine, 2,5-dibromo-

Cas:25462-61-7

Min.Order:100 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

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

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

2,5-Dibromo-1,4-phenylenediamine

Cas:25462-61-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

2,5-Dibromo-1,4-phenylenediamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

Hebei Mojin Biotechnology Co.,Ltd

1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification

1,4-Benzenediamine, 2,5-dibromo-

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec 2,5-Dibromobenzene-1,4-diamine 5g

Cas:25462-61-7

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals

2,5-Dibromo-1,4-phenylenediamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Wuxi TAA Chemical Industry Co.,LTD.

1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re

1,4-Benzenediamine, 2,5-dibromo-

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Other

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

2,5-Dibromo-1,4-phenylenediamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

1,4-Benzenediamine, 2,5-dibromo-

Cas:25462-61-7

Min.Order:0

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

2,5-Dibromo-1,4-phenylenediamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

HANGZHOU TIANYE CHEMICALS CO., LTD.

We 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

2,5-Dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hubei Langyou International Trading Co., Ltd

high purity 2,5-dibromobenzene-1,4-diamine Application:high purity 2,5-dibromobenzene-1,4-diamine

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Other

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

2,5-Dibromo-1,4-phenylenediamine CAS No.25462-61-7

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

DB BIOTECH CO., LTD

best seller Application:API

2,5-Dibromo-1,4-phenylenediamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Wuhan ZeShanCheng Biomedical Technology Co., Ltd.

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highl

1,4-Benzenediamine, 2,5-dibromo-

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

2,5-Dibromo-1,4-phenylenediamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

1,4-Benzenediamine,2,5-dibromo-

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou ZeErRui Chemical Co., Ltd.

Hangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri

2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SAGECHEM LIMITED

25462-61-7 Application:intermediate

2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hunan Longxianng Runhui Trading Co.,Ltd

high 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

high purity 2,5-dibromobenzene-1,4-diamine

Cas:25462-61-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

2-acetamido-5-amino-p-dibromobenzene

2-acetamido-5-amino-p-dibromobenzene

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
With methanol; sodium hydroxide at 80℃; for 6h; Temperature;90.84%
2,5-dibromo-4-nitroaniline
25462-68-4

2,5-dibromo-4-nitroaniline

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
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
18908-08-2

1,4-dibromo-2,5-bisnitrobenzene

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
With hydrogenchloride; tin
N-(2,5-dibromo-4-nitrophenyl)acetamide
25462-67-3

N-(2,5-dibromo-4-nitrophenyl)acetamide

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
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
7647-01-0

hydrogenchloride

1,4-dibromo-2,5-bisnitrobenzene
18908-08-2

1,4-dibromo-2,5-bisnitrobenzene

tin

tin

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-dibromo-p-phenylenediamine; dihydrochloride

2,5-dibromo-p-phenylenediamine; dihydrochloride

A

hydrogenchloride
7647-01-0

hydrogenchloride

B

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
beim Erhitzen;
1.4-dibromobenzene
106-37-6

1.4-dibromobenzene

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
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
25462-66-2

N-(2,5-dibromophenyl)acetamide

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
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
3638-73-1

2,5-dibromoaniline

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
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
3460-18-2

1,4-dibromo-2-nitrobenzene

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

trimethylsilylacetylene
1066-54-2

trimethylsilylacetylene

2,5-bis(trimethylsilylethynyl)-1,4-phenylenediamine

2,5-bis(trimethylsilylethynyl)-1,4-phenylenediamine

Conditions
ConditionsYield
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
6165-69-1

Thien-3-ylboronic acid

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-di(thiophen-3-yl)benzene-1,4-diamine

2,5-di(thiophen-3-yl)benzene-1,4-diamine

Conditions
ConditionsYield
With tris-(dibenzylideneacetone)dipalladium(0); potassium carbonate; tri tert-butylphosphoniumtetrafluoroborate In tetrahydrofuran at 80℃; for 16h; Suzuki-Miyaura Coupling; Inert atmosphere;91%
7-(bromomethyl)pentadecane
52997-43-0

7-(bromomethyl)pentadecane

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

C38H70Br2N2

C38H70Br2N2

Conditions
ConditionsYield
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%
9-(iodomethyl)nonadecane
1043023-53-5

9-(iodomethyl)nonadecane

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

C46H86Br2N2

C46H86Br2N2

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

benzenesulfenyl chloride
931-59-9

benzenesulfenyl chloride

2,5-dibromo-N,N'-bisphenylthio-benzoquinone diimine

2,5-dibromo-N,N'-bisphenylthio-benzoquinone diimine

Conditions
ConditionsYield
With pyridine In dichloromethane83%
2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-methylthiophene
476004-80-5

5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-methylthiophene

2,5-bis(5-methylthiophen-2-yl)benzene-1,4-diamine

2,5-bis(5-methylthiophen-2-yl)benzene-1,4-diamine

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

1,4-dibromo-2,5-bisnitrobenzene
18908-08-2

1,4-dibromo-2,5-bisnitrobenzene

Conditions
ConditionsYield
With trifluoroacetyl peroxide In dichloromethane at -5 - 5℃; for 6h;80%
2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

((2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)anthra[2,3-b]thiophene-5,10-diyl)bis (ethyne-2,1-diyl))bis(triisopropylsilane)

((2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)anthra[2,3-b]thiophene-5,10-diyl)bis (ethyne-2,1-diyl))bis(triisopropylsilane)

2,5-(5,10-bis((triisopropylsilyl)ethynyl)anthra[2,3-b]thiophen-2-yl)benzene-1,4-diamine

2,5-(5,10-bis((triisopropylsilyl)ethynyl)anthra[2,3-b]thiophen-2-yl)benzene-1,4-diamine

Conditions
ConditionsYield
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
1121-60-4

pyridine-2-carbaldehyde

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-dibromo-N,N-bis(pyridine-2-ylmethylene)benzene-1,4-diamine
1574359-42-4

2,5-dibromo-N,N-bis(pyridine-2-ylmethylene)benzene-1,4-diamine

Conditions
ConditionsYield
In ethanol for 2h; Reflux;73%
1-bromo-hexane
111-25-1

1-bromo-hexane

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-dibromo-N1,N4-dihexylbenzene-1,4-diamine

2,5-dibromo-N1,N4-dihexylbenzene-1,4-diamine

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

N-methylaniline
100-61-8

N-methylaniline

1-(2,5-dibromo-4-aminophenyl)-3-methyl-3-phenyltriazene

1-(2,5-dibromo-4-aminophenyl)-3-methyl-3-phenyltriazene

Conditions
ConditionsYield
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
917985-54-7

2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-hexylthiophene

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-bis(5-hexyl-2-thienyl)-1,4-phenylenediamine

2,5-bis(5-hexyl-2-thienyl)-1,4-phenylenediamine

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

phenylacetylene
536-74-3

phenylacetylene

2,6-diphenyl-1,5-dihydropyrrolo[2,3-f]indole
620987-20-4

2,6-diphenyl-1,5-dihydropyrrolo[2,3-f]indole

Conditions
ConditionsYield
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
111-83-1

1-bromo-octane

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-dibromo-N1,N4-dioctylbenzene-1,4-diamine

2,5-dibromo-N1,N4-dioctylbenzene-1,4-diamine

Conditions
ConditionsYield
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-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-propylthiophene

2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-propylthiophene

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-bis(5-propyl-2-thienyl)-1,4-phenylenediamine

2,5-bis(5-propyl-2-thienyl)-1,4-phenylenediamine

Conditions
ConditionsYield
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
13331-23-2

fur-2-ylboronic acid

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-bis(2-furanyl)-1,4-phenylenediamine

2,5-bis(2-furanyl)-1,4-phenylenediamine

Conditions
ConditionsYield
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;
2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

propionaldehyde
123-38-6

propionaldehyde

C12H6Br2N2

C12H6Br2N2

Conditions
ConditionsYield
With hydrogenchloride In water for 12h; Inert atmosphere; Reflux;59.6%
2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2-thiopheneboronic acid pinacol ester
193978-23-3

2-thiopheneboronic acid pinacol ester

2,5-bis(2-thienyl)-1,4-phenylenediamine

2,5-bis(2-thienyl)-1,4-phenylenediamine

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

3,5-dimethoxyphenylboronic acid
192182-54-0

3,5-dimethoxyphenylboronic acid

3,3’’,5,5’’-tetramethoxy-1,1’:4’,1’-terphenyl-2’,5’-diamine

3,3’’,5,5’’-tetramethoxy-1,1’:4’,1’-terphenyl-2’,5’-diamine

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

p-tert-butyl benzoyl chloride
1710-98-1

p-tert-butyl benzoyl chloride

N,N'-(2,5-dibromo-1,4-phenylene)bis(4-(tertbutyl)benzamide)

N,N'-(2,5-dibromo-1,4-phenylene)bis(4-(tertbutyl)benzamide)

Conditions
ConditionsYield
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
98437-23-1

benzo[b]thiophene-2-boronic acid

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-bis(2-benzothienyl)-1,4-phenylenediamine

2,5-bis(2-benzothienyl)-1,4-phenylenediamine

Conditions
ConditionsYield
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
98437-23-1

benzo[b]thiophene-2-boronic acid

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-bis(2-benzothienyl)-1,4-phenylenediamine

2,5-bis(2-benzothienyl)-1,4-phenylenediamine

Conditions
ConditionsYield
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
25462-61-7

2,5-dibromo-1,4-phenylenediamine

phenylacetylene
536-74-3

phenylacetylene

1,4-diamino-2,5-bis(phenylethynyl)benzene
1141727-55-0

1,4-diamino-2,5-bis(phenylethynyl)benzene

Conditions
ConditionsYield
With copper diacetate; triphenylphosphine; palladium dichloride In triethylamine at 85℃; for 8h; Inert atmosphere;13%
2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

2,5-dibromo-1,4-benzoquinone
1633-14-3

2,5-dibromo-1,4-benzoquinone

Conditions
ConditionsYield
Oxydation;
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

di(tert‐butyl) (2,5‐dibromo‐1,4‐phenylene)dicarbamate
159624-12-1

di(tert‐butyl) (2,5‐dibromo‐1,4‐phenylene)dicarbamate

Conditions
ConditionsYield
With sodium hydride 1.) THF, reflux, 0.5 h, 2.) THF, reflux, 14 h; Yield given. Multistep reaction;
2,5-dibromo-1,4-phenylenediamine
25462-61-7

2,5-dibromo-1,4-phenylenediamine

chromic acid mixture

chromic acid mixture

2,5-dibromo-1,4-benzoquinone
1633-14-3

2,5-dibromo-1,4-benzoquinone

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