反应详情

Hydrazine monohydrate (1.42 ml, 23.4 mmol), 1-hydroxybenzotriazole (2.44 g, 18.0 mmol), and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (4.49 g, 23.4 mmol) were added to an N,N-dimethylformamide (75 ml) solution of trans-4-(carbobenzoxyamino)cyclohexanecarboxylic acid (5.00 g, 18.0 mmol) at room temperature and the resulting mixture was stirred for 3 days. Water (150 ml) was added to the reaction mixture and the precipitated solid was collected by filtration and dried under reduced pressure to give 4.52 g (86%) of the title compound as a colorless solid.

1. filtrationthe precipitated solid was collected by filtration
2. customdried under reduced pressure