HCID 18991946, compound → HCID 54129247, compound

Participants

Reaction Steps

In 100 ml of DMF were dissolved 2.21 g of 3,3-bis(p-dibutylaminophenyl)acrolein and 1.0 g of p-xylene-α,α'-diylbis(diethyl phosphonate), and then 0.59 g of potassium tert-butoxide was added to the solution at room temperature. Thereafter, the reaction was carried out for 4 hours at room temperature with stirring and the reaction mixture was poured into 100 ml of ice-water. Then, precipitates thus deposited were collected by filtration, dissolved in benzene, and separated and purified by silica gel column chromatography (eluent: benzene). After distilling off benzene from the effluent, the residue was recrystallized from ethyl acetate to provide 1.42 g (yield 58.8%) of red crystals having a melting point of from 107.0° C. to 111.5° C.

Provenance & Evidence