反应详情

A solution of 1,1,4,4-tetramethyl-6-ethyl-1,2,3,4-tetrahydronaphthalene (528 grams) and acetyl chloride (234 grams) is added over a 31/2 hour period at 70° C. to a well-stirred slurry of aluminum chloride (534 grams), 1,1,4,4-tetramethyl-6-ethyl-1,2,3,4-tetrahydronaphthalene (1200 grams) and isooctane (432 grams). The reaction is worked up as in Example I to afford 689 grams of 1,1,4,4-tetramethyl-6-ethyl-7-acetyl-1,2,3,4-tetrahydronaphthalene (89% based on consumed 1,1,4,4-tetramethyl-6-ethyl-1,2,3,4-tetrahydronaphthalene) and 1106 grams of recovered 1,1,4,4-tetramethyl-6-ethyl-1,2,3,4-tetrahydronaphthalene.