2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile

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Chemical Name:2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile
CAS No.:1008520-06-6
Molecular Formula:C₁₅H₁₀BrN₃O₂
Molecular Weight:344.167
Hs Code.:

Synonyms:2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile

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Chemical Property of 2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile

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Technology Process of 2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile

There total 2 articles about 2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-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: 19.0%

: (E)-2-bromo-4-{N'-[1-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-ethylidene]-hydrazino}-benzonitrile

: 1008520-06-6
2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile

Guidance literature:: (E)-2-bromo-4-{N'-[1-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-ethylidene]-hydrazino}-benzonitrile; With sulfuric acid; acetic acid; In acetic acid; at 110 ℃; for 2.5h;

With water; sodium hydrogencarbonate;

Reference yield:

: 263845-82-5
2-bromo-4-hydrazinylbenzonitrile

: 1008520-06-6
2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile

Guidance literature:: Multi-step reaction with 2 steps

1: hydrogenchloride / 1,4-dioxane; toluene / 15 h / 80 °C

2: sulfuric acid; acetic acid / acetic acid / 2.5 h / 110 °C

With hydrogenchloride; sulfuric acid; acetic acid; In 1,4-dioxane; acetic acid; toluene;

Reference yield: 23.0%

: 38041-19-9
4-aminotetrahydropyran

: 1008520-06-6
2-Bromo-4-(3,6-dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-benzonitrile

: 1008520-08-8
4-(3,6-Dimethyl-4-oxo-4H-pyrano[2,3-c]pyrazol-1-yl)-2-(tetrahydro-pyran-4-ylamino)-benzonitrile

Guidance literature:: With sodium t-butanolate; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; In toluene; at 115 ℃; for 1h;