[F:1][C:2]([F:6])([F:5])[CH2:3][OH:4].[O:7]1[CH2:11][CH2:10]OC1=O>CCN(CC)CC>[F:1][C:2]([F:6])([F:5])[CH2:3][O:4][CH2:10][CH2:11][OH:7]2,2,2-trifluoroethanol (15 g), 1,3-dioxolan-2-one (19.8 g) and Et3N (15 g) were mixed together, and then the mixture was heated to 100° C. and stirred for 24 h. Then the reaction mixture was distilled to obtain intermediate BR (12.7 g).
Wird geladen…