Ethyl Acetate → HCID 25235545, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-(2,6-dichloro-phenyl)-3H-benzoimidazole-5-carboxylic acid hydrazide (150 mg, 0.466 mmol) in DMF (3 mL) add 3-chloro phenyl isothiocyanate (69 uL, 0.512 mmol) and stir for 1.75 hr. Add EDCI (179 mg, 0.932 mmol) and heat to 80° C. for 30 min. Allow to stir at room temp overnight. Dilute the reaction with EtOAc (50 mL) and extract with water (10 mL) and 1 N NaOH (10 mL). Dry the organic phase over Na2SO4 and evaporate the solvent. Combine the aqueous phases, chill to 4° C., and filter. Combine the solids and suspend them in boiling toluene/EtOAc. Cool the suspension to 4° C. and filter. Wash the solid with Et2O. Dry to afford the title compound as a white solid: 1H NMR (400 MHz, DMSO-d6) δ ppm 7.07 (ddd, J=7.96, 2.02, 0.76 Hz, 1H) 7.40 (t, J=8.15 Hz, 1H) 7.50-7.55 (m, 1H) 7.62-7.67 (m, 1H) 7.70 (s, 1H) 7.72 (d, J=2.02 Hz, 1H) 7.75-7.91 (m, 3H) 8.11 (br. s., 1H) 10.99 (br. s., 1H) 13.28 (br. s., 1H); MS m/z=457.9 (M+1).

Provenance & Evidence