| 摘要 |
PCT No. PCT/JP94/00068 Sec. 371 Date Jul. 27, 1995 Sec. 102(e) Date Jul. 27, 1995 PCT Filed Jan. 19, 1994 PCT Pub. No. WO94/17020 PCT Pub. Date Aug. 4, 1994The present invention provides a production method of obtaining the mixture of 1,1,1,4,4,4-hexafluoro-2,3-dichloro-2-butene, 1,1,1,4,4,4-hexafluoro-2-chloro-2-butene and 1,1,1,4,4,4-hexafluoro-2-butene (1,1,1,4,4,4-hexafluoro-2-butene compounds) by reacting at least one of butane, butene and butadiene with chlorine and HF in the presence of a suitable catalyst, and also a production method of obtaining 1,1,1,4,4,4-hexafluorobutane by reducing said products in the presence of a noble metal catalyst. According to these methods, 1,1,1,4,4,4-hexafluorobutane, a compound useful for a blowing agent, cleaning agent or heating medium as an alternative to HCFC, can be obtained at a high selectivity rate; and 1,1,1,4,4,4-hexafluoro-2-butene compounds including 1,1,1,4,4,4-hexafluoro-2,3-dichloro-2-butene, 1,1,1,4,4,4-hexafluoro-2-chloro-2-butene and 1,1,1,4,4,4-hexafluoro-2-butene, which are obtained as reaction intermediates in the production method of 1,1,1,4,4,4-hexafluorobutane and can be used as industrial intermediate chemicals for medicine and agricultural chemicals, can be produced less costly at high yields in a single step process.
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