The acetylation of the three title olefins in the presence of aluminum chloride and of stannic chloride, employing a variety of conditions, has been surveyed, Acetylation of cyclooctene using pure acetyl chloride and aluminum chloride gives mainly ring-contraction products reported earlier, whereas use of stannic chloride leads mainly to 1-acetyl-4- chlorocyclooctane and 4-acetylcyclooctene, Acetylation with acetic anhydride in several ...
