ChemInform Abstract: First Example of Carbonyl Condensation of Cyclopentadienone Hydrazone Furnishing an Unsymmetrical Azine and Its Subsequent endo-Dimerization into the Tricyclo(5.2.1.02,6)decadiene Framework.V. A. NIKANOROV; S. V. SERGEEV; G. E. VAINER; D. V. ZVEREV; E. V. VORONTSOV; P. V. PETROVSKII; O. L. TOK; V. V. MIKUL'SHINA · 1997