反应详情

To a solution of 2-hydroxyethylhydrazine (7.15 g, 0.09 moles) in 125 mL tetrahydrofuran was added dropwise with stirring 11.76 g (0.09 moles) cyclohexyl isocyanate in 70 mL tetrahydrofuran. The solution was stirred overnight at room temperature, and the solvent was evaporated to yield quantitatively a pale viscous oil which slowly crystallizes.

1. customthe solvent was evaporated
2. customto yield quantitatively a pale viscous oil which
3. customslowly crystallizes