Water → HCID 67621687, compound

Participants

Reaction Steps

A stirred suspension of sodium hydride (0.272 g; 60% w/v dispersion in mineral oil; 6.8 mmol) in tetrahydrofuran (100 mL) at 0° C. under nitrogen is treated, dropwise, with methyl (diethylphosphono)acetate (1.43 g) and stirred for 15 minutes. It is then treated with a solution of ethyl (RS)-4-(5-benzyloxy-2-formylphenoxy)-4-(2-methylphenyl)butanoate (1.96 g) in tetrahydrofuran (5 mL) in one portion, and the reaction mixture is stirred at ambient temperature for 15 minutes. The mixture is treated with water (100 mL) and extracted with ethyl acetate (3×100 mL), and the combined organic extracts are washed with brine (50 mL), dried over magnesium sulphate, and filtered and the solvent is removed in vacuo, to give ethyl (E)-(RS)-4-(2-methylphenyl)-4-[2-(2-methoxycarbonylethenyl)-5-benzyloxyphenoxy]butanoate, in the form of a yellow oil.

Provenance & Evidence