| 摘要 |
A process for producing a perfluoroalkyne compound includes an addition reaction step of adding Cl2, Br2, or I2 to a compound shown by the formula (1) CH3C≡CR1 to obtain a compound shown by the formula (2) CH3CX2CX2R1, a fluorination reaction step of reacting the compound shown by the formula (2) with fluorine gas to obtain a compound shown by the formula (3) CF3CX2CX2R2, and a dehalogenation reaction step of contacting the compound shown by the formula (3) with a metal or an organometallic compound to obtain a perfluoroalkyne compound shown by the formula (4) CF3C≡CR2. According to the present invention, a perfluoroalkyne compound can be produced at high productivity and high yield using starting raw materials which are environmentally friendly and industrially available. In the above formulas, R1 represents a methyl group or an ethyl group, X represents Cl, Br, or I, and R2 represents a trifluoromethyl group or a pentafluoroethyl group.
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