Vinyl and Alkynyl Azides: Well‐Known Intermediates in the Focus of Modern Synthetic Methods

Abstract

Getting real: Although 1-azidoalkenes are known as important intermediates for the formation of many nitrogen heterocycles, for a long time the existence of the corresponding 1-azidoalkynes could not be proven unequivocally. The recent synthesis and full characterization of 1-azidoethyne have provided incontrovertible verification of this substance class.