反应详情

17.45 g (50.45 mmol; 81% purity) of rac-2-[(diphenylmethylene)amino]-4-fluoro-2-methylbutanonitrile from Example 69A were dissolved in 235.6 ml of tetrahydrofuran and 9.1 ml of water, 111 ml (55.46 mmol) of hydrogen chloride solution (0.5 N in diethyl ether) were added and the mixture was stirred at room temperature overnight. The slightly turbid reaction solution was admixed with 25.21 ml (50.42 mmol) of hydrogen chloride solution (2 N in diethyl ether) and concentrated by rotary evaporation. The isolated crude product was reacted further directly without further purification.

1. concentrationconcentrated by rotary evaporation
2. customThe isolated crude product
3. customwas reacted further directly without further purification