Реакция #1909795

Уравнение реакции

sodium bicarbonate

cis-1-{2-[4-(6-methoxy-2-phenyl 1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy] ethyl} pyrrolidine

boron tribromide

→

lasofoxifene

Выход 74.0%

Растворители

methylene chloride

methylene chloride

Условия реакции

Обработка

1. 1
   ДругоеThe organic layer was separated
2. 2
   Сушкаdried over sodium sulfate
3. 3
   Фильтрацияfiltered
4. 4
   Концентрированиеconcentrated

Методика

To a solution of 400 mg (0.94 mmol) of cis-1-{2-[4-(6-methoxy-2-phenyl 1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy] ethyl} pyrrolidine in 25 mL of methylene chloride at 0° C. was added, dropwise with stirring, 4.7 ml (4.7 mmol) of a 1.0 M solution of boron tribromide in methylene chloride. After 3 hours at room temperature, the reaction was poured into 100 mL of rapidly stirring saturated aqueous sodium bicarbonate. The organic layer was separated, dried over sodium sulfate, filtered, and concentrated to afford 287 mg (74% yield) of lasofoxifene as the free base.

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