Tributylphosphine → 4-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-benzylamino}-benzoic acid methyl ester

Participants

Reaction Steps

To a 0° C. solution of [3-(2,6-dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-yl]-methanol (309 mg, 1.08 mmol), 4-(4-hydroxy-2-methyl-benzylamino)-benzoic acid methyl ester (292 mg, 1.08 mmol), and tri-n-butylphosphine (344 mg, 1.70 mmol) in toluene (50 mL) is added 1,1′-(Azodicarbonyl)-dipiperidine (450 mg, 1.78 mmol). The reaction mixture is stirred for 1.5 h. The reaction mixture is diluted with heptane, filtered, and concentrated under reduced pressure. The residue is purified by flash chromatography (40 g silica, gradient EtOAc/Hexane) to give 4-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-benzylamino}-benzoic acid methyl ester (309 mg, 1.08 mmol). MS: 539.0 (M+1).

Provenance & Evidence