... 1,1-Dihalo-2-benzylcyclopropanes in reaction with nitrous acid . ... It was shown that both a nitration of aromatic ring and a heterocyclization of 1, 1-dihalo-2-benzylcyclopropanes take place. The heterocyclization is initiated by an opening of cyclopropane ring in the reaction with nitrosyl cation. ... Moscow University Chemistry Bulletin . 2009, Vol. ... Copyright (C) Chemistry Dept., Moscow State University, 2002 . ... Copyright (C) Chemisty Department of Moscow State University . ...