Iodoethane → 3-(4-Benzyloxyphenyl)-2-ethoxypropanoic acid ethyl ester

Participants

Reaction Steps

A mixture of racemic ethyl 2-hydroxy-3-(4-benzyloxyphenyl)propionate of the formula (10) (70 g) obtained according to the procedure described in step (iii) above. potassium hydroxide (26 g), dimethylsulphoxide (280 ml) and molecular sieves (36 g) was stirred at room temperature for 15 minutes. Ethyliodide (110 g) was added slowly at room temperature over 15 minutes. The reaction was stirred at the same temperature for a period of 15-20 h. The progress of the reaction was monitored by TLC. After completion of the reaction, the reaction mixture was dumped into ice water and extracted with toluene. The combined organic extracts were washed with water and the solvent was removed under reduced pressure to afford title compound of the formula (12a) (61-63 g, 80-82%).

Provenance & Evidence