Dimethylformamide → 1-[4-(4-Fluoro-phenyl)-piperazin-1-yl]-2-(4-bromo-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-ethanone

Participants

Role	Name	HCID	Charge
Reactant	Dimethylformamide	HCID 6228	—
Reactant	Potassium Carbonate	HCID 11430	—
Reactant	1-(Chloroacetyl)-4-(4-fluorophenyl)piperazine	HCID 1848511	—
Reactant	4-Bromo-3-methyl-5-(trifluoromethyl)pyrazole	HCID 2736430	—
Solvent	Ethyl acetate hexane	HCID 21226206	—
Product	1-[4-(4-Fluoro-phenyl)-piperazin-1-yl]-2-(4-bromo-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-ethanone	HCID 21071006	—

Reaction Steps

Protocol T was followed using 4-Bromo-5-methyl-3-trifluoromethyl-1H-pyrazole, K2CO3, 2-Chloro-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanone and DMF. Column chromatography using a solvent mixture (hexane/ethyl acetate=2/3) afforded the title compound as white solid. 1H NMR (400 MHz, CDCl3): 6.96-7 (m, 2H), 6.84-6.9 (m, 2H), 5 (s, 2H), 3.6-3.8 (m, 4H), 3.02-3.16 (m, 4H), 2.3 (s, 3H). 13C NMR (400 MHz, CDCl3): 162.6, 146.5, 142, 118.5, 116, 52.2, 50.4, 46, 42.2, 15.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US07449576B1
Source dataset	uspto-grants-2008_11
ORD ID	ord-616663fe3e1949da83b48eec72d8ca20
Source note	uspto-grants-2008_11