| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbonaceous electrode with the equipment and reaction operation easily handled, capable of being stably operated even under severe conditions and capable of partially fluorinating an org. compd. by forming a film of semiconductor diamond on a silicon substrate in a vapor phase by the use of a bismuth dopant. SOLUTION: A film of semiconductor diamond is formed on a substrate, preferably a silicon substrate, resistant to a temp. when the film is formed in a vapor phase. Specifically, vapor film growth by microwave-irradiation CVD is preferably applied in this case by using B2H6, or the like, as a dopant and a gaseous mixture of CH4, or the like, and H2. Consequently, a stable electrode for electrolytic fluorination reaction easy to handle and having a long service life is obtained. The electrode is used as an anode and an electrolyte consisting essentially of Et4NF.4HF, or the like, is used to conduct electrolytic fluorination of an org. compd., especially an aromatic compd., and a variously applicable fluoride is stably formed.
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