Notes- Pyrolysis of Perfluorothioxane Tetrafluoride

Abstract

NOTESyol. 24 and the oxidation procedure used for the preparation of 4,6-benzindoIe (V) was followed. The product (IV) was recovered from the steam distillate as white crystals; 0.45 g• (27%), m.p. 170-171°. By recrystallization from dilute ethanol an analytically pure sample (m.p. 172°) was prepared which gave a very strong positive test with Ehrlich's reagent. Its infrared spectrum in the 2.9 µ and 6.1 µ regions was similar to that of V.