5-(difluoromethyl)-3-phenyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-7(4H)-one

Base Information

Chemical Name:5-(difluoromethyl)-3-phenyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-7(4H)-one
CAS No.:1281995-68-3
Molecular Formula:C₁₄H₈F₅N₃O
Molecular Weight:329.229
Hs Code.:

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

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

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

There total 3 articles about 5-(difluoromethyl)-3-phenyl-2-(trifluoromethyl)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%

: 352-24-9
ethyl 4,4-difluoro-3-oxobutyrate

: 62649-36-9
4-phenyl-3-(trifluoromethyl)-1H-pyrazol-5-amine

: 1281995-68-3
5-(difluoromethyl)-3-phenyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-7(4H)-one

Guidance literature:: With acetic acid; at 125 ℃; for 4h;
DOI:10.1016/j.ejmech.2011.01.010

Reference yield:

: 140-29-4
phenylacetonitrile

: 1281995-68-3
5-(difluoromethyl)-3-phenyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-7(4H)-one

Guidance literature:: Multi-step reaction with 3 steps

1: ethanol; sodium / 2 h / 50 °C / Reflux

2: hydrazinium sulfate / carbonic acid dimethyl ester / 4 h / 80 °C / Molecular sieve

3: acetic acid / 4 h / 125 °C

With ethanol; sodium; acetic acid; hydrazinium sulfate; In carbonic acid dimethyl ester;
DOI:10.1016/j.ejmech.2011.01.010

Reference yield:

: 1259536-96-3
C₁₀H₅F₃NO^(1-)*Na⁽¹⁺⁾

: 1281995-68-3
5-(difluoromethyl)-3-phenyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-7(4H)-one

Guidance literature:: Multi-step reaction with 2 steps

1: hydrazinium sulfate / carbonic acid dimethyl ester / 4 h / 80 °C / Molecular sieve

2: acetic acid / 4 h / 125 °C

With acetic acid; hydrazinium sulfate; In carbonic acid dimethyl ester;
DOI:10.1016/j.ejmech.2011.01.010