Triethylamine → HCID 67041950, compound

Participants

Reaction Steps

Synthesis of N-(4-benzoyl-1,2,5-oxadiazol-3-yl)-2-chloro-4-(methylsulfonyl)-3-[(2,2,2-trifluoroethoxy)methyl]benzamide (example No. 11-5 in the tables) 204 mg (0.59 mmol) of 2-chloro-4-(methylsulfonyl)-3-[(2,2,2-trifluoroethoxy)methyl]-benzoic acid and 111 mg (0.59 mmol) of (4-amino-1,2,5-oxadiazol-3-yl)(phenyl)-methanone are dissolved in 10 ml of dichloromethane at RT and treated with 59 mg (0.599 mmol) of triethylamine, 14 mg (0.19 mmol) of DMAP and 561 mg (0.882 mmol) of 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide (50% solution in THF). The reaction mixture is stirred for 30 h at RT and subsequently washed twice with in each case 5 ml of water. The organic phase is dried over Na2SO4 and evaporated. The residue is purified by column chromatography (silica gel, heptane/ethyl acetate). Yield 50 mg (15%).

Provenance & Evidence