Process for preparing pentafluoropentanol

Details Process for preparing pentafluoropentanol Process for preparing pentafluoropentanol

C - Chemistry, Metallurgy

07

C

C07C 31/38 (2006.01) C07C 29/36 (2006.01) C07C 29/44 (2006.01) C07C 29/58 (2006.01)

Patent

CA 2247609

4,4,5,5,5-Pentafluoro-1-pentanol is prepared in a particularly advantageous manner from perfluoroethyl iodide by initially adding perfluoroethyl iodide in the presence of a radical initiator which does not carry any acyl groups to allyl alcohol and then hydrogenolytically dehalogenating the resulting 4,4,5,5,5-pentafluoro-2-iodo-1-pentanol in the presence of a catalyst, an acid binder and a diluent.

Le 4,4,5,5,5-pentafluoro-1-pentanol est préparé de façon particulièrement avantageuse à partir d'iodure de perfluoroéthyle, par addition initiale d'iodure de perfluoroéthyle, en présence d'un radical initiateur ne portant aucun groupe acyle, à un alcool allylique, puis par déshalogénation avec hydrogénolyse du 4,4,5,5,5-pentafluoro-2-iodo-1-pentanol en présence d'un catalyseur, d'un liant acide et d'un diluant.

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