“…The term nitrosite is a shortened form of nitrosonitrite, whereas the term pseudonitrosite is used for the isomeric nitronitroso addition compound. Preparative details for addition of dinitrogen trioxide to CC compounds to give dimeric nitronitroso (pseudonitrosite) derivatives are given for but-2-ene, dimethylbutadiene, styrene, 4-methoxy-propenylbenzene (anethole), 4-propenyl-1,2-methylenedioxybenzene (isosafrole), stilbene, cyclohexene, cyclooctene, and cycloocta-1,5-diene. − Details are also given for nitronitroso derivatives from l -α-phellandrene and for cinnamyl acetate and for initial nitrosonitrites from propene, 2-methylpropene, 3-chloropropene, and 2,3-dimethylbut-2-ene . Pfab showed that the addition of dinitrogen trioxide to 2-methylpropene produced the trans- dimer of 1-nitro-2-methyl-2-nitrosopropane together with other products from oxidation of the monomeric nitroso compound.…”