... Tommy J . McCord, Don H. Kelley (2), James A . Rabon, David C. Foyt, and Aluie L. Davis Department of Chemistry, Abilene Christian College, Abilene, Texas 79601 ... (3) T. J. McCord, JL Kreps, JN Hubbard, and AL Davis, J. Heterocyclic Chem., 6,937 (1969). ...