Fluorinated esters as lubricants for heat transfer fluids
AssigneeMexichem Fluor S.A. De C.V.
InventorsRobert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
Life of this patent
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Abstract
The present disclosure provides compounds of formula (I), and preparation method thereof, wherein W is independently selected from the group consisting of H, F, Cl, Br and I; X is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR on the basis that at least one X is OR; R is independently selected from the group consisting of C(O)CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3; m is an integer from 0 to 2;15 n is an integer from 2 to 8; Y is C(Z)3; and Z is independently selected from the group consisting of H, F, Cl, Br and I. Such compounds may be utilised as lubricants, for example in heat transfer compositions.
Claims18
A method of preparing a compound of formula (I) comprising reacting a compound of formula (A) with a compound of formula (B):
- C(O)V(CH2)m(CF2)nY Formula (B)
- wherein
- W is independently selected from the group consisting of H, F, Cl, Br and I;
- X′ is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR′, on the basis that at least one X′ is OR′;
- R′ is CW2C(CW2OH)3;
- m is an integer from 0 to 2;
- n is an integer from 2 to 8;
- V is OH, F, Cl, Br or I;
- Y is C(Z)3;
- and
- Z is independently selected from the group consisting of H, F, Cl, Br and I;
- to provide a compound of formula (I)
- wherein
- X is independently selected from the group consisting of H, F, Cl, Br, I, CW3, and OR on the basis that at least one X is OR;
- R is independently selected from the group consisting of C(O)(CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3.
A method of preparing a compound of formula (I) comprising reacting a compound of formula (A) with a compound of formula (B):
- C(O)V(CH2)m(CF2)nY Formula (B)
- wherein
- W is independently selected from the group consisting of H, F, Cl, Br and I;
- X′ is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR′, on the basis that at least one X′ is OR′,
- R′ is independently selected from the group consisting of H and CW2C(CW2OH)3;
- m is an integer from 0 to 2;
- n is an integer from 2 to 8;
- V is OH, F, Cl, Br or I;
- Y is C(Z)3;
- and
- Z is independently selected from the group consisting of H, F, Cl, Br and I, to provide a compound of formula (I)
- wherein
- X is independently selected from the group consisting of H, F, Cl, Br, I, CW3, and OR on the basis that at least one X is OR;
- R is independently selected from the group consisting of C(O)(CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3,
- wherein when m is 1, n is an integer from 4 to 7.
A method of preparing a compound of formula (I) comprising reacting a compound of formula (A) with a compound of formula (B):
- C(O)V(CH2)m(CF2)nY Formula (B)
- wherein
- W is independently selected from the group consisting of H, F, Cl, Br and I;
- X′ is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR′, on the basis that at least one X′ is OR′;
- R′ is independently selected from the group consisting of H and CW2C(CW2OH)3;
- m is an integer from 0 to 2;
- n is an integer from 2 to 8;
- V is OH, F, Cl, Br or I;
- Y is C(Z)3;
- and
- Z is independently selected from the group consisting of H, F, Cl, Br and I;
- to provide a compound of formula (I)
- wherein
- X is independently selected from the group consisting of H, F, Cl, Br, I, CW3, and OR on the basis that at least one X is OR;
- R is independently selected from the group consisting of C(O)(CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3,
- wherein the compound according to formula B is selected from the group consisting of ClC(O)(CF2)5CF3, ClC(O)(CF2)5CF2H, and ClC(O)H(CF2)6CF3.
A method of preparing a compound of formula (I) comprising reacting a compound of formula (A) with a compound of formula (B):
- C(O)V(CH2)m(CF2)nY Formula (B)
- wherein
- W is independently selected from the group consisting of H, F, Cl, Br and I;
- X′ is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR′, on the basis that at least one X′ is OR′;
- R′ is independently selected from the group consisting of H and CW2C(CW2OH)3;
- m is an integer from 0 to 2;
- n is an integer from 2 to 8;
- V is OH, F, Cl, Br or I;
- Y is C(Z)3;
- and
- Z is independently selected from the group consisting of H, F, Cl, Br and I;
- to provide a compound of formula (I)
- wherein
- X is independently selected from the group consisting of H, F, Cl, Br, I, CW3, and OR on the basis that at least one X is OR;
- R is independently selected from the group consisting of C(O)(CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3,
- wherein the method comprises reacting at least two different compounds of formula (A) with at least two different compounds of formula (B).
Dependencies are inferred from the claim text.