Page 1. SYNTHETIC COMMUNICATIONS, 13(14), 1181-1192 (1983) A VERSATILE SYNTHETIC ROUTE TO SUBSTITUTED THIANTHRENES Ian WJ Still* and Vilayat A. Sayeed Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 1Al ABSTRACT ... The mixture was cooled to 0-3"C, and sodium nitrite (4.5 g , 65 Page 6. 1186 STILL AND SAYEED mmol in lOmL of cold water) was added over a period of 1 h under NZ. ...