The ethanolysis of acetyl chloride has been compared to the methanolysis and the hydrolysis, as well as to the reaction with n-propanol, n-butanol and n-pentanol in acetone and in toluene, to reveal chain-length effects. Pentanol, heptanol and nonanol have been included as well in the investigation, but at lower concentrations. Structural influences on the alcoholysis of acetyl chloride have been studied with the isomeric C-3 and C-4-alcohols in acetone and in toluene. Furthermore, alcoholysis of acetyl chloride with some C-7-alcohols and the reaction of benzoyl chloride with different types of alcohols have been investigated.