Bearing a lone pair of electrons on nitrogen and a highly polarized N O double bond, nitroso compounds can act both as nucleophiles and electrophiles. Such dually reactive nature allows nitroso compounds to participate in many chemical transformations, 1 such as ene reactions, 2 nitroso aldol reactions, 3 coupling reactions with alkynes 4 and amines 5 and Grignard reactions. 6 Moreover, nitroso compounds have been exploited in various cycloaddition ...
