ChemInform Abstract: Attempted Synthesis of Selenium and Tellurium Analogs of 1,5-Diaryl- 1,3,5-trithia-2,4-diaza-2,3-pentadienes.

ChemInform Abstract

The trithia- and thiadiselenadiazaallenes (III) are prepared from the bistrimethylsilyl compound (II) and the chlorides (Ia) - (Ic). Pentafluorobenzeneselenenyl chloride (Id) gives the diselenide (IV). Only an unidentified compound is obtained from benzenetellurenyl bromide (Ie). Lithium hexamethyldisilazide (V) reacts with (Ic) and (Id), producing the selenenylsilazanes (VI). (¹H-, ¹³C-, ¹⁹F-, ²⁹Si-, ⁷⁷Se-NMR-, UV-data).