Реакция #53309

Уравнение реакции

Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-oxobutyrate

bromine

→

title compound

Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-oxo-3-bromobutyrate

Растворители

ether

ether

Условия реакции

Обработка

1. 1
   Другоеreaction mixture
2. 2
   Концентрированиеwas concentrated
3. 3
   Другоеpurified by flash chromatography on silica gel column (EtOAc:Hex, 1:4)

Методика

To a ice cooled solution of Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-oxobutyrate (Step C, 3 g, 9 mmol) in dry ether (70 ml) was added dropwise bromine (0.7971 g, 9.9 mmol) diluted in ether (30 ml). After 4 hours of stirring, reaction mixture was concentrated and purified by flash chromatography on silica gel column (EtOAc:Hex, 1:4) to provide the title compound.

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