Treatment of 1,4-dichlorodiphenyl-2,3-diazabutadiene (2) with the sodium salts of cyclic thioureas has yielded the first examples of a new type of seven-membered heterocycle, annelated 1,3,4,6-thiatriazepines.
用环状
硫脲的
钠盐处理1,4-二
氯二
苯基-2,3-二
氮杂
丁二烯(2)已产生了新型的七元杂环,经退火的1,3,4,6-
硫杂三
氮杂ze烷的第一个实例。