tert-Butyl carbazate → 2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl)-4-fluoro-benzoic Acid, 2-(1,1-dimethylethyloxy)carbonyl Hydrazide

Participants

Reaction Steps

To a solution of 2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl)-4-fluoro-benzoyl chloride (0.5 g) in tetrahydrofuran (20 ml) was added t-butylcarbazate (0.18 g) at ambient temperature. After 1 hour, the resulting mixture was concentrated under reduced pressure and the residue was subjected to column chromatography on silica gel eluted with a mixed solvent of ethyl acetate and hexane (2:3) to give the titled compound (0.48 g).

Provenance & Evidence