Chlorination of difluoromethyl methyl ether

Details Chlorination of difluoromethyl methyl ether Chlorination of difluoromethyl methyl ether

1994-04-01

1995-08-29

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568681, 20415792, C07C 4100, C07C 4300

Patent

active

054462118

ABSTRACT:
The synthesis of fluorinated dimethyl ethers of the formula CF.sub.2 HOCCl.sub.x F.sub.y H.sub.3-(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 CF.sub.2 HOCH.sub.3-z Cl.sub.z 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 CF.sub.2 HOCCl.sub.3. 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.

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