The oxidation of hydrazones produce a diazo compound; https://www.orgsyn.org/demo.aspx?prep=cv6p0392 , an intermediate in the bamford stevens reaction is a diazo moiety, when 2 diazopropane decomposes does it produce 1 propene, and generally speaking do diazo compounds spontaneously decompose, is the oxidation of hydrazones used to access alkenes?