反应详情

Cyclobutylamine (27.91 g, 392.4 mmol, 33.5 mL) was added dropwise to a stirred solution of ethyl 4-isocyanatobenzoate (25 g, 130.8 mmol) in dichloromethane. After 40 minutes stirring, the solid precipitate that had formed was filtered off and dried to afford the title compound (30.28 g). MS (ESI) m/z 263.1 [M+H]+

1. customthe solid precipitate that had formed
2. filtrationwas filtered off
3. customdried