反应详情

To a solution of methylamine (0.35 g; 11.29 mmol) in chloroform (30 ml), a solution of methacryloyl isocyanate (1.11 g; 10 mmol) in 1,2-dichloroethane (2 ml) was dropwise added under nitrogen stream while cooling with ice. After completion of the addition, chloroform, 1,2-dichloroethane and methylamine were evaporated under reduced pressure to give 1-methacryloyl-3-methylurea (1.42 g), which was recrystallized from a mixture of benzene and hexane to give colorless plates. M.P., 112°-113.5° C.

1. temperaturewhile cooling with ice
2. customwere evaporated under reduced pressure