Triethylamine → 1-[3-(4-Chlorophenyl)-1,2-oxazol-5-yl]methanamine

Participants

Reaction Steps

1.56 g (10 mmol) of p-chlorobenzaldoxime was dissolved in 40 ml of dried dichloromethane in a erlenmeyer flask equipped with a magnetic stirrer, and 1.7 g (12 mmol) of N-chlorosuccinimide was added slowly. The reaction mixture was stirred until completely dissolved. The system was heated slightly for 20 min. Then, 0.56 g (10 mmol) of propargyl amine was introduced and 1.2 g (12 mmol) of triethylamine was added dropwise, which caused the emission of white smog. The reaction mixture was heated under reflux for 2 h, and then purified by column chromatography on silica gel using petroleum ether (b.p. 60-90° C.)—ethyl acetate (v:v=4:1) as eluant, to obtain 2.3 g of the product as yellow solid. The yield was 62%.

Provenance & Evidence