تفاعل #53429
ord-a00cbcb54b8f47ee845db3020a23743c
الكواشف
لا شيء
ظروف التفاعل
الظروف التفصيلية
See reaction.notes.procedure_details.
المعالجة
- 1أخرىThe reaction mixture is evaporated in vacuo
- 2أخرىthe mixture is evaporated again
- 3استخلاصextracted several times with water
- 4أخرىThe aqueous phase is evaporated to a very great extent
- 5أخرىan oil being obtained which
- 6أخرىcrystallizes on standing
الإجراء التجريبي
3.0 g (16.4 mmol) of the compound from Example I are boiled under reflux for 17 hours in 250 ml of a saturated methanolic ammonia solution. The reaction mixture is evaporated in vacuo, the residue is taken up in methanol and the mixture is evaporated again; this process is repeated a few times. The crude product is taken up in dichloromethane and extracted several times with water. The aqueous phase is evaporated to a very great extent, an oil being obtained which crystallizes on standing.