Acetyl nitrate in acetic acid-acetic anhydride solution reacts within five minutes with cis-and trans-2-butenes, 2-methylpropene, 2-methyl-2-butene, cyclopentene, cyclohexene and 1- methylcyclohexene to give p-nitro acetates in 20-64y0 yields and p-nitroalkenes in 3-50'% yields. Under these conditions 1-butene, 3-methyl-l-butene, 2, 3, 3-trimethyl-l-butene, 2, 4, 4- trimethyl-2-pentene. 3-chloro-2-methyl-lpropene, 2-bromopropene and 2-acetoxypropene ...