Epichlorohydrin → Diglycidyl ether

Compound A prepared in the same manner as in Reference Example 2 was allowed to place at 10° C. for a week to obtain precipitated crystals. The crystal was filtered and washed with trichlorotrifluoroethane to obtain 26 g (0.063 mole) of 1,4-bis(1,1,1,3,3,3-hexafluoro-2-hydroxyisopropyl)cyclohexane (Compound B). To a mixture of Compound B and 117 g (1.26 moles) of epichlorohydrin were added 5.1 g (0.13 mole) of sodium hydroxide and 0.6 ml of water and the mixture was refluxed for 10 hours with stirring. The resulting sodium chloride was removed by filtration and the excess of epichlorohydrin was distilled off. The residue was distilled to obtain 16 g of diglycidyl ether of Compound B having a boiling point of 147° to 151° C./1 mmHg.

1. temperaturethe mixture was refluxed for 10 hours
2. customThe resulting sodium chloride was removed by filtration
3. distillationthe excess of epichlorohydrin was distilled off
4. distillationThe residue was distilled

ORD record

ord-6aab246b5abf4b1d9be1f1f4fe61d65d

Source dataset

uspto-grants-1993_04

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05202360