Реакция #78463
ord-60d4301b0661475eba687659c5701d38
Уравнение реакции
Реактанты
Реагенты
Нет
Растворители
Условия реакции
Подробные условия
See reaction.notes.procedure_details.
Обработка
- 1Температураwas cooled to 0° C
- 2ДругоеAfter separation
- 3Промывкаthe organic layer was washed with brine
- 4Сушкаdried over MgSO4
- 5Концентрированиеconcentrated under vacuum
- 6Другоеto yield the crude product
- 7ДругоеIt was chromatographed on silica gel with MeOH—CHCl3—NH4OH (1:99:0.1 to 5:95:0.1) as eluents
Методика
To a solution of the title compound of example 42 (11.89 g, 25.03 mmol) in acetic acid (75 ml) was added p-anisaldehyde (6.09 ml, 50.06 mmol) dropwise. The reaction mixture was stirred at ambient temperature for 4 hours after which time it was cooled to 0° C. 10 ml of ammonia hydroxide was added followed by addition of ethyl acetate. After separation, the organic layer was washed with brine, dried over MgSO4 and concentrated under vacuum to yield the crude product. It was chromatographed on silica gel with MeOH—CHCl3—NH4OH (1:99:0.1 to 5:95:0.1) as eluents to afford the title compound of Example 43A as a white solid (11.58 g, 78% yield).