公开(公告)号：EP1426351A4

公开(公告)日：2006-03-01

申请号：EP02760828

申请日：2002-09-13

Applicant: TOSOH F TECH INC

Inventor： NAGASAKI NORITAKA ,  KAWAMURA TSUYOSHI ,  NUKUI KAZUNORI ,  ARAI SHOJI

IPC: C07C29/124 ,  C07C29/80 ,  C07C31/38 ,  C07C51/09 ,  C07C59/01

CPC classification number: C07C29/124 ,  C07C31/38

Abstract: The invention provides a process for the preparation of 2,2,2-trifluoroethanol by reacting a Ϝ-hydroxybutyric acid salt with 1,1,1-trifluoro-2-chloroethane which brings about an increase in the yield of 2,2,2-trifluoroethanol and enables easy separation of by-product salts and recovery and recycling of an aprotic polar solvent. The invention relates to a process for the preparation of 2,2,2-trifluoroethanol by reacting a Ϝ-hydroxybutyric acid salt with 1,1,1-trifluoro-2-chloroethane in an aprotic polar solvent, characterized by using a Ϝ-hydroxybutyric acid salt having a 4,4’-oxydibutyric acid content of 6 wt% or below.