Studies on the reactions between nitric oxide and conjugated dienes

Abstract

Chlorine-substituted dienes interact with nitric oxide to form low molecular weight polymers. Initiation is by addition of nitric oxide. The short chain polymerisation is terminated by a cage reaction with nitrogen trioxide or by addition of nitric oxide, the nitroso-end group reacting further to form oximes and nitriles. Less reactive dienes gave similar products, there being a tendency for the chain reaction to give monomeric nitromono-olefins and mono-olefinic nitrates.