反应详情

Ethyl 4-methoxy-3-nitrophenyl carbonate (0.720 g, 2.99 mmol) was dissolved in EtOAc (20 ml), and glacial acetic acid (0.200 ml, 3.49 mmol) was added followed by 10% palladium on carbon (0.100 g, 0.094 mmol). The mixture was stirred in a Parr apparatus under hydrogen atmosphere (25 psi) for 2 hours. The catalyst was filtered off, and the filtrate was evaporated under reduced pressure. The resulting crude 3-amino-4-methoxyphenyl ethyl carbonate (0.600 g, 2.84 mmol, 95% yield, MS/ESI+ 212.3 [MH]+), was used for the next step without any further purification.

1. filtrationThe catalyst was filtered off
2. customthe filtrate was evaporated under reduced pressure