1-(3,4-Dichlorophenyl)-4,4,4-trifluorobutane-1,3-dione → 5-(3,4-Dichlorophenyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

HRID 2054228Notes

Reaction equation

HRID 2054228 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:9](=O)[CH2:10][C:11](=O)[C:12]([F:15])([F:14])[F:13])[CH:5]=[CH:6][C:7]=1[Cl:8].[NH2:18][C:19]1[C:23]([C:24]#[N:25])=[CH:22][NH:21][N:20]=1>>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:10]=[C:11]([C:12]([F:15])([F:14])[F:13])[N:20]3[N:21]=[CH:22][C:23]([C:24]#[N:25])=[C:19]3[N:18]=2)[CH:5]=[CH:6][C:7]=1[Cl:8]

Participants

3

Reactant 2

HCID 124462551-(3,4-Dichlorophenyl)-4,4,4-trifluorobutane-1,3-dioneHCID 178510443HCID 178510443, compound

Product 1

HCID 47674855-(3,4-Dichlorophenyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrileYield 39.2%

Procedure

Reaction of 1-(3,4-dichloro-phenyl)-4,4,4-trifluoro-butane-1,3-dione (285 mg, 1.0 mmol), prepared from commercially available 3,4-dichloro-acetophenone according to general procedure A, and 3-amino-4-cyano-pyrazole (108 mg, 1.0 mmol) according to general procedure B yielded the title compound as a yellow solid (140 mg, 39%). MS (ISP) 356.9 [(M+H)+]; mp 206° C.

Sources & evidence

ORD record
ord-50ab6cfe40da4356899c6e0696a26a31
Source dataset
uspto-grants-2008_02
Patent number
US07329662B2

Reaction notes

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