Potassium Hydroxide → HCID 9799122, compound

Participants

Reaction Steps

Dissolved in 50 ml of dimethylsulfoxide were 1.31 g (3 mmol) of ethyl 4-(2-diisopropylaminoethylamino)-2-oxo-1-phenyl-1,2-dihydroquinoline-3-carboxylate (Compound No. 7), followed by the addition of a solution of 0.68 g (10 mmol) of potassium hydroxide in 6 ml of water. They were reacted at 60° C. for 4 hours. The reaction mixture was poured into ice water, and the resulting precipitate was collected by filtration, washed with water and then dried. The resulting powder was dissolved in chloroform, purified by chromatography on a silica gel column, and then recrystallized from isopropyl ether, whereby 0.78 g of 4-(2-diisopropylaminoethylamino)-1-phenyl-1,2-dihydroquinolin-2-one (Compound No. 43) was obtained (yield: 71.6%).

Provenance & Evidence