Fluorinated methyl ethers
AssigneeE. I. Du Pont de Nemours and Company
InventorsCarl G. Krespan, V. N. Mallikarjuna Rao
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AssigneeE. I. Du Pont de Nemours and Company
InventorsCarl G. Krespan, V. N. Mallikarjuna Rao
Estimating the term…
A process is disclosed for producing a fluorinated ether of the formula R.sub.2 CHOCF.sub.2 A, where A is Cl or F, and each R is H, (CF.sub.2).sub.n Cl, (CF.sub.2).sub.n F or (CF.sub.2).sub.n H (n is an integer from 1 to 10) by reacting a first reactant of the formula R.sub.2 CHOY where Y is H, COF, COCl or COOCHR.sub.2 (R is as defined above), a second reactant selected of the formula CZ.sub.2 Cl.sub.2 or COZ.sub.2 where each Z is independently Cl or F (provided that when A is Cl, the second reactant is CZ.sub.2 Cl.sub.2), and HF; and recovering the fluorinated ether from the reaction products. Also disclosed are bis-ethers of the formula (CF.sub.3 (CF.sub.2).sub.m).sub.2 CHOCF.sub.2 OCH(CF.sub.2).sub.m CF.sub.3).sub.2, where m is an integer of 0 to 3, which can also be produced by the process.
A process for producing a fluorinated ether of the formula R.sub.2 CHOCF.sub.2 A, wherein A is selected from the group consisting of Cl and F and each R is independently selected from the group consisting of H, (CF.sub.2).sub.n Cl, (CF.sub.2).sub.n F and (CF.sub.2).sub.n H where n is an integer from 1 to 10, comprising the steps of:
Dependencies are inferred from the claim text.