“…Compound 1 was synthesized in moderate yield from benzaldehyde and chloroform according to literature [12]. Compound 1 (6.77 g, 30 mmol) and triethyl amine (6.07 g, 60 mmol) were dissolved in dichloromethane (30 mL), and the resulting solution was cooled to -5 o C. Then, methacryloyl chloride (2.09 g, 20 mmol) in dichloromethane (10 mL) was added dropwise.…”