4-Iodobenzoyl chloride → N-(2,2-dimethoxyethyl)-4-iodobenzamide

Participants

Reaction Steps

A solution of 4-iodobenzoyl chloride (100 g, 375.6 mmol) in 300 mL of acetone was added to a solution of aminoacetaldehyde dimethylacetal (41.4 g, 1.05 equiv.) and potassium hydrogen carbonate (39.5 g, 1.05 equiv.) in 270 mL of acetone and 450 mL of water. After completion of the reaction, acetone was removed under reduced pressure at no more than 35° C. to induce crystallization. The crystal slurry was filtered, washed and dried in vacuo at <50° C., to give 120 g (95 M %, HPLC area % 96) of the title compound.

Provenance & Evidence