Triethylamine → HCID 18959650, compound

Participants

Reaction Steps

To a solution obtained by dissolving 430 mg of N-(4-hydroxyphenyl)-2-[(E)-1-(2-methyl-5-phenyl-3-thienyl)ethylidene]-3-isopropylidenesuccinimide obtained in Example 8 in 10 ml of dichloromethane, 202 mg of triethylamine was added, followed by dropwise addition of 209 mg of methacryloyl chloride in 10 minutes. The reaction was carried out at room temperature for further 1 hour. After the reaction, the reaction solution was washed with water, dried over anhydrous magnesium sulfate, and subjected to removal of the solvent by distillation. The resulting residue was purified by column chromatography (filler: Wakogel C-300, eluent: a mixed solution of n-hexane and ethyl acetate) to give organce crystals of N-(4-methacryloyloxyphenyl)-2-[(E)-1-(2-methyl-5-phenyl-3-thienyl)ethylidene]-3-isopropylidenesuccinimide in yield of 44.0%.

Provenance & Evidence