Oa. Attanasi et al., Tert-butyl 2-{1-[2-aryl-4-oxothiazol-5(4H)-ylidene ]ethyl}diazene-1-carboxylates: A new class of 1,2-diaza-1,3-butadienes, HETEROCYCLE, 51(10), 1999, pp. 2423-2430
The synthesis and reactions of tert-butyl 2-{1-[2-aryl-4-oxothiazol-5(4H)-y
lidene]ethyl}diazene-1-carboxylates: a new class of 1,2-diaza-1,3-butadiene
s is reported.