Naphthoannulation: A new procedure

ORGN 170

Patrick M. Donovan and Lawrence T. Scott. Department of Chemistry, Boston College, Merkert Chemistry Center, Chestnut Hill, MA 02467-3860

The 4-step naphthoannulation of thioxanthen-9-one (1) shown below gives the previously unknown sulfur heterocycle 4. Details of this procedure and its application to other diaryl ketones will be presented.