A new route towards the synthesis of substituted naphthalenes via Friedel-Crafts acylation
A novel approach towards the synthesis of substituted naphthalene derivatives is achieved by a treatment of the 4-aryl-4-hydroxy-3-p- toluenesulfonylbutanal ethylene acetals (6a-e) with a catalytic amount of p- toluene sulfonic acid. (C) 2000 Elsevier Science Ltd.