Derivatives of Fluorene. IV. Raney Nickel-Hydrazine Hydrate Reduction of Various Mono- and Dinitrofluorene Derivatives; Some New 9-Substituted Fluorenes1
Derivatives of Fluorene. IV. Raney Nickel-Hydrazine Hydrate Reduction of Various Mono- and Dinitrofluorene Derivatives; Some New 9-Substituted Fluorenes<sup>1</sup>