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Ethyl 3-(2-pyridyl)-2H-azirine-2-carboxylate, the first example of an 3-heteroamatic 2H-azirine has been prepared. The re- action of ethyl 3-(2-pyridyl)-2H-azirine-2-carboxylate with conju- gated 1,3-dienes, under mild conditions and in the absence of Lewis acid catalyst, afforded cycloadducts in good yield and high stereo- selectivity.

Ethyl 3-(2-Pyridyl)-2H-azirine-2-carboxylate: Synthesis and Reaction with Dienes