The nitro group is a powerful electron-withdrawing substituent and this property dominates the chemistry of all molecules containing this functional group. Nitroalkenes are powerful dienophiles in the Diels–Alder reaction. 1 The versatility of the nitro group makes possible its transformations into many compounds with diverse functionalities. Removal of a nitro group leading to the formation of carbonyl compounds in the classical Nef reaction is well known. 1 Significant biological ...