Studies on Heterocyclic Compounds. XIX. Synthesis of Furo [2, 3-<I>d</I>]-pyridazine Derivatives.(7). Nitration of Furo [2, 3-<I>d</I>] pyridazines in the 5 Position
Studies on Heterocyclic Compounds. XIX. Synthesis of Furo [2, 3-<I>d</I>]-pyridazine Derivatives.(7). Nitration of Furo [2, 3-<I>d</I>] pyridazines in the 5 Position