C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 43/12 (2006.01) C07C 41/22 (2006.01)
Patent
CA 2145144
The synthesis of fluorinated dimethyl ethers of the formula CF2HOCClxFyH3(x+y) wherein x is 0, 1 or 2; y is 1, 2 or 3; and wherein (x+y) is 1, 2 or 3. The process involves chlorination of methyl difluoromethyl ether in the presence of a solvent to form a chlorinated reaction product of the formula CF2HOCH3-zC1z wherein z is 1, 2 or 3. The process may also be carried out in the presence of oxygen in order to inhibit the formation of CF2HOCC13. The resulting compound(s) is then fluorinated with HF before or after separation, to give a fluorinated reaction product including the aforementioned fluorinated dimethyl ethers.
Bulka Robert J.
O'neill Gerald J.
Deeth Williams Wall Llp
Hampshire Chemical Corp.
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