3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

Base Information

Chemical Name:3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile
CAS No.:1378039-97-4
Molecular Formula:C₁₃H₄Br₂Cl₂N₄
Molecular Weight:446.916
Hs Code.:

Synonyms:3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

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Technology Process of 3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

There total 7 articles about 3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 75.0%

: 1378039-82-7
3,5-dichloro-4-(4-chloro-7-fluoro-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

: 1378039-97-4
3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

Guidance literature:: With trimethylsilyl bromide; In propiononitrile; for 22h; Reflux;

Reference yield:

: 2546-56-7
4-chloro-3-fluoro-pyridine

: 1378039-97-4
3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

Guidance literature:: Multi-step reaction with 7 steps

1.1: diisopropylamine; n-butyllithium / hexane; tetrahydrofuran / 18.75 h / -78 - -30 °C

1.2: 20 °C

2.1: sodium azide / N,N-dimethyl-formamide / 18 h / 20 °C

3.1: triethylamine; titanium tetrachloride / dichloromethane / 1.16 h / 20 °C

4.1: toluene / 1 h / 20 °C / Reflux

5.1: dihydrogen peroxide; methyltrioxorhenium(VII) / dichloromethane / 3 h / 20 °C

6.1: trichlorophosphate / 1,2-dichloro-ethane / 4.5 h / 20 - 70 °C

7.1: trimethylsilyl bromide / propiononitrile / 22 h / Reflux

With n-butyllithium; sodium azide; trimethylsilyl bromide; dihydrogen peroxide; titanium tetrachloride; methyltrioxorhenium(VII); triethylamine; diisopropylamine; trichlorophosphate; In tetrahydrofuran; hexane; dichloromethane; 1,2-dichloro-ethane; N,N-dimethyl-formamide; toluene; propiononitrile;

Reference yield:

: 1060802-34-7
4-chloro-5-fluoropyridine-3-carboxaldehyde

: 1378039-97-4
3,5-dichloro-4-(4,7-dibromo-pyrazolo[4,3-c]pyridin-2-yl)-benzonitrile

Guidance literature:: Multi-step reaction with 6 steps

1: sodium azide / N,N-dimethyl-formamide / 18 h / 20 °C

2: triethylamine; titanium tetrachloride / dichloromethane / 1.16 h / 20 °C

3: toluene / 1 h / 20 °C / Reflux

4: dihydrogen peroxide; methyltrioxorhenium(VII) / dichloromethane / 3 h / 20 °C

5: trichlorophosphate / 1,2-dichloro-ethane / 4.5 h / 20 - 70 °C

6: trimethylsilyl bromide / propiononitrile / 22 h / Reflux

With sodium azide; trimethylsilyl bromide; dihydrogen peroxide; titanium tetrachloride; methyltrioxorhenium(VII); triethylamine; trichlorophosphate; In dichloromethane; 1,2-dichloro-ethane; N,N-dimethyl-formamide; toluene; propiononitrile;