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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's 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. DayangChem can provide different quantities

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:1 Kilogram

FOB Price: $3.0

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

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

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

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Huarong Pharm Co., Ltd.

We Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Kono Chem Co.,Ltd

high 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

2,1,3-benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

factory?direct?sale Application:healing drugs

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Fandachem Co.,Ltd

2,1,3-Benzothiadiazole-5-carboxylic acidAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Other

inquiry

SAGECHEM LIMITED

16405-98-4 Application:intermediate

benzo[1,2,5]thiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Order Science & Technology Co., Ltd

factory?direct?sale Application:healing drugs

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

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

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Amadis Chemical Co., Ltd.

1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G

2,1,3-benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Watson International Ltd

Watson International Ltd' has a very strong R&D and technical capacity supported by FCAD's platform. The subsidiaries under FCAD Group have accumulated much know-how of different fine chemical branches. For example, Apnoke Scientific L

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Chemical Technology Co.,LTD

1. Production capacity: we have three production base with high-tech production equipment and instruments, equipped with professional production personnel, meet your requirements.2. Quality assurance: we have a first-class testing equipment and testi

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Other

inquiry

Yinghao Pharm Co.,Ltd.

Yinghao Pharm products include: leader molecule, heterocyclic compounds,chiral compounds, photoelectric materials, biochemical reagents etc. For example:benzene, pyrimidine, boricacid,pyridine, pyrazole, imidazole, pyrrole, fluorine and other derivat

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Share Chemical Co., Ltd

At Share Chemical Company, we scrupulously abide by our policy of “Excellent Quality at a Reasonable Price”. We strive to satisfy all of our customers by providing the finest quality products supported by the finest in customer servi

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Finetech Industry Limited

FINETECH INDUSTRY LIMITED is a LONDON based CRO company providing drug discovery & development services to worldwide clients. FINETECH INDUSTRY LIMITED supplies the 2,1,3-Benzothiadiazole-5-carboxylic acid, CAS:16405-98-4 with the most competitive pr

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

GZ HONESTCHEM CO., LTD

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Run-Biotech Co., Ltd.

1.We have rich experience in the development and production 2.Our factory is in Shanghai of China,We have convenient traffic conditions.3.We have advanced testing equipment and shipping line. Package:5g, 10g, 50g, 100g, 1kg Application:Pharmaceutical

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai PotentPharm Science and Technology Co.,Ltd

1 good quality, better price and bettter service;2 Timely delivery;3 100% refunded if parcel is t delivered or poor quality.We will try to satisfy you upon receipt of your reply. I hope that we can become a long-term cooperative partner. Application:

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Tianjin SPHINX SCIENTIFIC LAB.

Package:1g,5g,10g

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Debye Scientific

Debyesci is here who supplied several kinds of chemical products to global pharmaceutical, drug discovery, agrochemical and biotechnology industries for four yearsOur key scientific leadership team has gained experience in top research and developmen

benzo[1,2,5]thiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai chamflyer chemicals Co., Ltd

High quality Application:Pharmaceutial

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Wuhan Chemwish Technology Co., Ltd

High quality Products with prompt delivery Package:based on customer requirement Application:organic intermediates Transportation:By air or By sea Port:any port or China

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

yuyongmei

YUYONGMEI was established in Aug,1999, located in the industrial park of Nanjing University of Technology, It is a private enterprises in Jiangsu Province with 1200 square meters’ R&D center. Our R&D center has a well-equipped synthetic laboratory a

2,1,3-Benzothiadiazole-5-carboxylic acid

Cas:16405-98-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

methyl benzo-2,1,3-thiadiazole-5-carboxylate

methyl benzo-2,1,3-thiadiazole-5-carboxylate

benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

Conditions
ConditionsYield
Stage #1: methyl benzo-2,1,3-thiadiazole-5-carboxylate With sodium hydroxide; ethanol; water at 20℃; for 3h;
Stage #2: With hydrogenchloride In water pH=2;
92%
With pyridine; lithium iodide Heating;
benzo[c][1,2,5]thiadiazole-5-carbaldehyde
71605-72-6

benzo[c][1,2,5]thiadiazole-5-carbaldehyde

benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

Conditions
ConditionsYield
With sodium hydroxide; silver nitrate
N-phenylsulfinylamine
222851-56-1

N-phenylsulfinylamine

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

Conditions
ConditionsYield
With xylene
5-methylbenzo[c][1,2,5]thiadiazole
1457-93-8

5-methylbenzo[c][1,2,5]thiadiazole

benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: N-bromo-succinimide
3: aqueous acetic acid; hexamethylenetetramine
4: AgNO3; aqueous NaOH
View Scheme
5-bromomethyl-benzo[1,2,5]thiadiazole
65858-50-6

5-bromomethyl-benzo[1,2,5]thiadiazole

benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
2: aqueous acetic acid; hexamethylenetetramine
3: AgNO3; aqueous NaOH
View Scheme
1-benzo[1,2,5]thiadiazol-5-ylmethyl-1,3,5,7-tetraaza-adamantanium; bromide

1-benzo[1,2,5]thiadiazol-5-ylmethyl-1,3,5,7-tetraaza-adamantanium; bromide

benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aqueous acetic acid; hexamethylenetetramine
2: AgNO3; aqueous NaOH
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

N,0-dimethylhydroxylamine
1117-97-1

N,0-dimethylhydroxylamine

benzo[1,2,5]thiadiazole-5-carboxylic acid methoxy-methyl-amide
937279-22-6

benzo[1,2,5]thiadiazole-5-carboxylic acid methoxy-methyl-amide

Conditions
ConditionsYield
With triethylamine; HATU In dichloromethane at 20℃; for 3h; Inert atmosphere;95%
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

4-(4-methoxybenzyl)-6-piperidin-4-ylpyrimidin-2-amine
198554-72-2

4-(4-methoxybenzyl)-6-piperidin-4-ylpyrimidin-2-amine

4-[1-(2,1,3-benzothiadiazol-5-ylcarbonyl)piperidin-4-yl]-6-(4-methoxybenzyl)pyrimidin-2-amine
1085916-69-3

4-[1-(2,1,3-benzothiadiazol-5-ylcarbonyl)piperidin-4-yl]-6-(4-methoxybenzyl)pyrimidin-2-amine

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In chloroform at 20℃;84%
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

2,1,3-benzothiadiazol-5-ylmethanol
89795-51-7

2,1,3-benzothiadiazol-5-ylmethanol

Conditions
ConditionsYield
Stage #1: benzo[1,2,5]thiadiazole-5-carboxylic acid With triethylamine; isobutyl chloroformate In tetrahydrofuran at 0℃; for 0.5h;
Stage #2: With sodium tetrahydroborate; water In tetrahydrofuran at 0℃; for 0.5h;
81%
Multi-step reaction with 2 steps
1: DIPEA / tetrahydrofuran / 1.5 h / 0 °C
2: 1.45 g / aq. NaBH4 / tetrahydrofuran / 2 h / 20 °C
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

tert-Butyl 2,2,2-trichloroacetimidate
98946-18-0

tert-Butyl 2,2,2-trichloroacetimidate

tert-butyl 2,1,3-benzothiadiazole-5-carboxylate

tert-butyl 2,1,3-benzothiadiazole-5-carboxylate

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In tetrahydrofuran; cyclohexane at 20℃; for 0.5h;76%
6,6-difluoro-5-methyl-5-hexenyl methanesulfonate
509101-25-1

6,6-difluoro-5-methyl-5-hexenyl methanesulfonate

benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

6,6-difluoro-5-methyl-5-hexenyl benzo[1,2,5]thiadiazole-5-carboxylate

6,6-difluoro-5-methyl-5-hexenyl benzo[1,2,5]thiadiazole-5-carboxylate

Conditions
ConditionsYield
With sodium hydrogencarbonate In DMF (N,N-dimethyl-formamide) at 100℃; for 3h;64%
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

benzo[1,2,5]thiadiazole-5-carboxylic acid amide
99620-31-2

benzo[1,2,5]thiadiazole-5-carboxylic acid amide

Conditions
ConditionsYield
With thionyl chloride anschliessend Umsetzen mit NH3;
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

chloroformic acid ethyl ester
541-41-3

chloroformic acid ethyl ester

C10H8N2O4S

C10H8N2O4S

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 0℃; for 1.5h;
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

4-{2-[1-methyl-4-(1-methyl-4-(4-amino-2-pyrrolecarboxamido)-2-pyrrolecarboxamido)-2-pyrrolecarboxamido]ethyl}morpholine dihydrochloride

4-{2-[1-methyl-4-(1-methyl-4-(4-amino-2-pyrrolecarboxamido)-2-pyrrolecarboxamido)-2-pyrrolecarboxamido]ethyl}morpholine dihydrochloride

4-{2-[1-methyl-4-(1-methyl-4-(1-methyl-4-(benzo[1,2,5]thiadiazole-5-carboxamido)-2-pyrrolecarboxamido)-2-pyrrolecarboxamido)-2-pyrrolecarboxamido]ethyl}morpholine

4-{2-[1-methyl-4-(1-methyl-4-(1-methyl-4-(benzo[1,2,5]thiadiazole-5-carboxamido)-2-pyrrolecarboxamido)-2-pyrrolecarboxamido)-2-pyrrolecarboxamido]ethyl}morpholine

Conditions
ConditionsYield
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 25 - 37℃; for 16h;
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

8-benzo[1,2,5]thiadiazol-5-ylmethyl-1-phenyl-1,3,8-triaza-spiro[4.5]decan-4-one

8-benzo[1,2,5]thiadiazol-5-ylmethyl-1-phenyl-1,3,8-triaza-spiro[4.5]decan-4-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: DIPEA / tetrahydrofuran / 1.5 h / 0 °C
2.1: 1.45 g / aq. NaBH4 / tetrahydrofuran / 2 h / 20 °C
3.1: MeSO2Cl; DIPEA / CH2Cl2 / 0.5 h / 20 °C
3.2: tetrahydrofuran / 1 h / 20 °C
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

4-oxo-1-phenyl-1,3,8-triaza-spiro[4.5]decane-8-carboxylic acid benzo[1,2,5]thiadiazol-5-ylmethyl ester

4-oxo-1-phenyl-1,3,8-triaza-spiro[4.5]decane-8-carboxylic acid benzo[1,2,5]thiadiazol-5-ylmethyl ester

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: DIPEA / tetrahydrofuran / 1.5 h / 0 °C
2.1: 1.45 g / aq. NaBH4 / tetrahydrofuran / 2 h / 20 °C
3.1: dimethylformamide; tetrahydrofuran / 2 h / 20 °C
3.2: 16.5 percent / dimethylformamide; tetrahydrofuran
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

N,O-dimethylhydroxylamine*hydrochloride
6638-79-5

N,O-dimethylhydroxylamine*hydrochloride

benzo[1,2,5]thiadiazole-5-carboxylic acid methoxy-methyl-amide
937279-22-6

benzo[1,2,5]thiadiazole-5-carboxylic acid methoxy-methyl-amide

Conditions
ConditionsYield
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane; N,N-dimethyl-formamide at 20℃; for 42h; Inert atmosphere;
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

5-(benzo[c][1,2,5]thiadiazol-5-yl)-2,2-dimethylfuran-3(2H)-one
1202376-82-6

5-(benzo[c][1,2,5]thiadiazol-5-yl)-2,2-dimethylfuran-3(2H)-one

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: triethylamine; HATU / dichloromethane / 3 h / 20 °C / Inert atmosphere
2.1: n-butyllithium / tetrahydrofuran; hexane / 0.67 h / -78 °C / Inert atmosphere
2.2: 3 h / -78 °C
3.1: toluene-4-sulfonic acid / dichloromethane / 2 h / 20 °C
4.1: diethylamine / ethanol / 20 °C
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

5-(benzo[c][1,2,5]thiadiazol-5-yl)-4-bromo-2,2-dimethylfuran-3(2H)-one
1202376-83-7

5-(benzo[c][1,2,5]thiadiazol-5-yl)-4-bromo-2,2-dimethylfuran-3(2H)-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: triethylamine; HATU / dichloromethane / 3 h / 20 °C / Inert atmosphere
2.1: n-butyllithium / tetrahydrofuran; hexane / 0.67 h / -78 °C / Inert atmosphere
2.2: 3 h / -78 °C
3.1: toluene-4-sulfonic acid / dichloromethane / 2 h / 20 °C
4.1: diethylamine / ethanol / 20 °C
5.1: N-Bromosuccinimide / chloroform / 2 h / 20 °C
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

1-(benzo[c][1,2,5]thiadiazol-5-yl)-4-hydroxy-4-methylpent-2-yn-1-one
1202376-81-5

1-(benzo[c][1,2,5]thiadiazol-5-yl)-4-hydroxy-4-methylpent-2-yn-1-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: triethylamine; HATU / dichloromethane / 3 h / 20 °C / Inert atmosphere
2.1: n-butyllithium / tetrahydrofuran; hexane / 0.67 h / -78 °C / Inert atmosphere
2.2: 3 h / -78 °C
3.1: toluene-4-sulfonic acid / dichloromethane / 2 h / 20 °C
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

1-(benzo[c][1,2,5]thiadiazol-5-yl)-4-methyl-4-(trimethylsilyloxy)pent-2-yn-1-one
1202376-80-4

1-(benzo[c][1,2,5]thiadiazol-5-yl)-4-methyl-4-(trimethylsilyloxy)pent-2-yn-1-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: triethylamine; HATU / dichloromethane / 3 h / 20 °C / Inert atmosphere
2.1: n-butyllithium / tetrahydrofuran; hexane / 0.67 h / -78 °C / Inert atmosphere
2.2: 3 h / -78 °C
View Scheme
benzo[1,2,5]thiadiazole-5-carboxylic acid
16405-98-4

benzo[1,2,5]thiadiazole-5-carboxylic acid

5-(benzo[c][1,2,5]thiadiazol-5-yl)-2,2-dimethyl-4-(4-(quinolin-2-ylmethoxy)phenyl)furan-3(2H)-one
1202368-77-1

5-(benzo[c][1,2,5]thiadiazol-5-yl)-2,2-dimethyl-4-(4-(quinolin-2-ylmethoxy)phenyl)furan-3(2H)-one

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: triethylamine; HATU / dichloromethane / 3 h / 20 °C / Inert atmosphere
2.1: n-butyllithium / tetrahydrofuran; hexane / 0.67 h / -78 °C / Inert atmosphere
2.2: 3 h / -78 °C
3.1: toluene-4-sulfonic acid / dichloromethane / 2 h / 20 °C
4.1: diethylamine / ethanol / 20 °C
5.1: N-Bromosuccinimide / chloroform / 2 h / 20 °C
6.1: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water; toluene / 12 h / Inert atmosphere; Reflux
View Scheme

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