Sept-Oct 1989 The Oxidative-Rearrangement of l-Amino-2-indolinones. A Synthesis of 2-Substituted-3(2Ä)-cinnolinones. RL Zey, G. Richter and H. Randa Department of Chemistry, Central Missouri State University, Warrensburg, Missouri 64093 Received March 13, 1989 Several 2-substituted-3(2//)-cinnolinones have been synthesized by a ring expansion of the respective l-substituted-2-indolinones via an oxidative-rearrangement with г-butyl ...