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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1175567Generated: November 2, 2026

1,2-Dichloroethane → HCID 58789395, compound

https://huagongshe.com/reaction/1175567

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantFlurbiprofenHCID 3394—
ReactantIsobutylamineHCID 6558—
ReactantTriethylamineHCID 8471—
Reactant1-HydroxybenzotriazoleHCID 75771—
SolventDichloromethaneHCID 6344—
ProductHCID 58789395HCID 5878939580%

Reaction Steps

To a solution of 2-(2-fluorobiphenyl-4-yl)propanoic acid (Aldrich) (172.3 mg), HOBt (133.2 mg, 1.4 eq) and triethylamine (196.5 mL, 2 eq) in dichoromethane (7 mL) was added at room temparature EDC (270.4 mg, 2.0 eq). The reaction was stired at room temperature for 30 minutes and 2-methylpropan-1-amine (0.1 mL, 1.5 eq) was added. The solution was stirred overnight then diluted with dichlorometahne and washed successively with aqueous NaHCO3, water, aqoueous HCL (1N), water, dried over MGSO4, filtered and evaporated. Chromatogarphy on silica gel (eluent:ethyl acetate/hexane 1:1) afforded 170 mg of 2-(2-fluorobiphenyl-4-yl)-N-isobutylpropanamide. Yield: 80%. 1H NMR (500 MHz, CDCl3): δ 0.83-0.79 (d, 6H), 1.55-1.56 (d, 3H), 1.69-1.74 (m, 1H), 3.04-3.07 (m, 2H), 3.56-3.58 (m, 1H), 5.4 (s br, 1H), 7.11-7.16 (m, 2H), 7.37-7.46 (m, 4H), 7.53-7.55 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07842324B2
Source datasetuspto-grants-2010_11
ORD IDord-0dd8f32874b04e4688f84766489dd37e
Source noteuspto-grants-2010_11