| 摘要 |
PURPOSE:To obtain a compound having a little influence on an ozone layer by reducing a carbon halide or a halogenated hydrocarbon in a protonic solvent in the presence of lead, tin, Bi, Ti or a compound thereof and a metal having higher ionization tendency than the metal. CONSTITUTION:A carbon halide or halogenated hydrocarbon (e.g., fluorocarbon 113a, 1,1,1-trichloroethane or CCl4) in a protonic solvent (e.g., lower alcohol, water or acetic acid) in the presence of lead, tin, Bi, Ti or a compound thereof and a metal (preferably Al) having higher ionization tendency than the metal to give a compound such as fluorocarbon 123, etc., in high yield. The amount of the metal used based on 1 equivalent raw material is 0.001-0.5 of the former and 0.4-7 equivalent of the latter. |
