5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one

Base Information

Chemical Name:5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one
CAS No.:1420468-34-3
Molecular Formula:C₁₆H₁₃ClF₃N₃O
Molecular Weight:355.747
Hs Code.:

Synonyms:5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one

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Chemical Property of 5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one

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Technology Process of 5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one

There total 7 articles about 5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one 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: 68.0%

: 1420468-33-2
5,7-dichloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidine

: 1420468-34-3
5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one

Guidance literature:: With sodium hydroxide; In tetrahydrofuran; at 50 ℃; for 3h;
DOI:10.1021/ml300330m

Reference yield:

: 1420468-30-9
2-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}-3-oxobutanenitrile

: 1420468-34-3
5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one

Guidance literature:: Multi-step reaction with 4 steps

1: hydrazine hydrate / ethanol / 20 - 100 °C / Inert atmosphere

2: sodium methylate / methanol / 20 - 80 °C / Inert atmosphere

3: N,N-diethylaniline; trichlorophosphate / 3.25 h / 0 - 80 °C / Inert atmosphere

4: sodium hydroxide / tetrahydrofuran / 3 h / 50 °C

With sodium methylate; hydrazine hydrate; N,N-diethylaniline; sodium hydroxide; trichlorophosphate; In tetrahydrofuran; methanol; ethanol;
DOI:10.1021/ml300330m

Reference yield:

: 261952-16-3
1-(bromomethyl)-2-methyl-3-(trifluoromethyl)benzene

: 1420468-34-3
5-chloro-2-methyl-3-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one

Guidance literature:: Multi-step reaction with 5 steps

1: N,N-dimethyl-formamide / 2.5 h / 0 - 40 °C / Inert atmosphere

2: hydrazine hydrate / ethanol / 20 - 100 °C / Inert atmosphere

3: sodium methylate / methanol / 20 - 80 °C / Inert atmosphere

4: N,N-diethylaniline; trichlorophosphate / 3.25 h / 0 - 80 °C / Inert atmosphere

5: sodium hydroxide / tetrahydrofuran / 3 h / 50 °C

With sodium methylate; hydrazine hydrate; N,N-diethylaniline; sodium hydroxide; trichlorophosphate; In tetrahydrofuran; methanol; ethanol; N,N-dimethyl-formamide;
DOI:10.1021/ml300330m