... A SIMPLE SYNTHESIS OF FLUORESCENT URACIL DERIVATIVES1 Hideyuki Ikehira, Teruo Matsuura and Isao Saito* Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University Kyoto 606, Japan Summary: 6-lodoand 5,6ihalouracil derivatives undergo remarkably efficient photocoupling reactions leading to strongly fluorescent heterocycles in the ... Soc., 102, 7535 (1980); (b) I. Saito, S. Ito, T. Shinmura and T. Matsuura, Tetrahedron Lett., 21 ...