Sodium hydride → HCID 136344251, compound

Participants

Reaction Steps

To a solution of 0.58 g of 4-hydroxy-3-[3-(3-hydroxyphenyl)-1-oxo-2-propenyl]-1,6-dimethyl-2(1H)-pyridinone in 10 ml of dimethylformamide was added 0.32 g of sodium hydride (60% oily), and this was stirred at room temperature for 1 hour. To the reaction mixture was added 0.25 g of 2-chloroethyldimethylamine hydrochloride, and this was heated at 60° C. for 4 hours. The solvent was distilled off under reduced pressure, and the precipitated crystals were filtered, washed with t-butyl methyl ether, and dried to obtain 0.21 g of 4-hydroxy-3-[3-[3-(2-dimethylaminoethoxy)phenyl]-1-oxo-2-propenyl]-1,6-dimethyl-2(1H)-pyridinone [Compound No. (56a)] as a yellow crystal.

Provenance & Evidence