Cyclopropyl methyl ketone → 1-Cyclopropyl-3-(pyridin-2-yl)propane-1,3-dione

Participants

Reaction Steps

A stirred mixture of 24 g. of ethyl picolinate, 18 g. of cyclopropylmethyl ketone and 11 g. of sodium methoxide in 250 ml. of benzene is heated under reflux for 6 hours. The mixture is diluted with 200 ml. of water and the water phase is removed. The aqueous solution is made weakly acidic with dilute hydrochloric acid. A solid precipitates and is collected by filtration. Recrystallization from cyclohexane provided colorless crystals, melting point 77°-78° C.

Provenance & Evidence