3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine

Base Information

Chemical Name:3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine
CAS No.:1201929-99-8
Molecular Formula:C₁₇H₁₁BrF₂N₆
Molecular Weight:417.215
Hs Code.:

Synonyms:3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine

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Chemical Property of 3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine

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Technology Process of 3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine

There total 5 articles about 3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine 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:

: 1121-79-5
3-chloro-6-methylpyridazine

: 1201930-27-9
[3-(5-bromopyrimidin-2-yl)phenyl]difluoroacetohydrazide

: 1201929-99-8
3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine

Guidance literature:: In butan-1-ol; at 130 ℃; for 18h;

Reference yield:

: 885068-75-7
2-(3-bromophenyl)-2,2-difluoroacetic acid ethyl ester

: 1201929-99-8
3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine

Guidance literature:: Multi-step reaction with 5 steps

1: potassium acetate / bis-triphenylphosphine-palladium(II) chloride / tetrahydrofuran / 42 h / 80 - 90 °C / Inert atmosphere

2: sodium carbonate / bis-triphenylphosphine-palladium(II) chloride / toluene; ethanol; water / 66 h / 80 °C / Inert atmosphere

3: sulfuric acid / methanol / 24 h / 35 °C

4: hydrazine hydrate / methanol / 18 h / 45 °C

5: butan-1-ol / 18 h / 130 °C

With hydrazine hydrate; sulfuric acid; potassium acetate; sodium carbonate; bis-triphenylphosphine-palladium(II) chloride; In tetrahydrofuran; methanol; ethanol; water; toluene; butan-1-ol;

Reference yield:

: ethyl difluoro-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetate

: 1201929-99-8
3-{[3-(5-bromopyrimidin-2-yl)phenyl]difluoromethyl}-6-methyl-1,2,4-triazolo[4,3-b]-pyridazine

Guidance literature:: Multi-step reaction with 4 steps

1: sodium carbonate / bis-triphenylphosphine-palladium(II) chloride / toluene; ethanol; water / 66 h / 80 °C / Inert atmosphere

2: sulfuric acid / methanol / 24 h / 35 °C

3: hydrazine hydrate / methanol / 18 h / 45 °C

4: butan-1-ol / 18 h / 130 °C

With hydrazine hydrate; sulfuric acid; sodium carbonate; bis-triphenylphosphine-palladium(II) chloride; In methanol; ethanol; water; toluene; butan-1-ol;