Dimethylformamide → 2-(3-tert-Butyl-5-trifluoromethyl-pyrazol-1-yl)-1-[4-(4-fluoro-phenyl)-piperazin-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	HCID 178440980	HCID 178440980	—
Solvent	Ethyl acetate hexane	HCID 21226206	—
Product	2-(3-tert-Butyl-5-trifluoromethyl-pyrazol-1-yl)-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanone	HCID 21071052	—

Reaction Steps

Protocol T was followed using 5-tert-Butyl-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=1/1) afforded the title compound as a colorless oil. 1H NMR (400 MHz, CDCl3); 6.92-7.08 (t, 2H), 6.82-6.88 (dd, 2H), 6.52 (s, 1H), 5.08 (s, 2H), 3.70-3.80 (m, 2H), 3.58-3.68 (m, 2H), 3.05-3.15 (m, 4H), 1.3 (s, 9H). 13C NMR (400 MHz, CDCl3): 164, 161.2, 158.2, 156.4, 147.2, 118.4, 118.2, 115.8, 115.4, 108.2, 54, 50.6, 50.2, 45, 44, 30.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US07449576B1
Source dataset	uspto-grants-2008_11
ORD ID	ord-90e7249292254de191d138a12e126ac2
Source note	uspto-grants-2008_11