“…Yet this method is not suitable for a number of substrates, like the most tetrasubstituted ethylenes, monocyclic olefi n (save the 4-6-membered rings), some bicyclic olefi ns, and conjugated dienes. In this connection the ozonolysis of olefi ns was carried out on solid organic polymers [6,7]. The powdered polyethylene exceeds in chemoselectivity the silica gel.…”