The nitration of an isopropyl substituted aromatic hydrocarbon has been studied extensively only in the case of p-cymene, 2va where it was found that, in addition to the main product, 2- nitrocymene, p-nitrotoluene was formed in about 8% yield. Many other cases have been reported in which an alkyl group in a polymethylben-~ ene,~ l~ J polyethybenzene, polychlorocymene8rg or polychloroctlfnenes~ e is replaced by an entering substituent, ...
