Nitrogen and/or oxygen-containing hydrofluoroolefins and methods of making and using the same

Patent metadata

Field	Value
Publication number	US-10934247-B2
Application number	US-201716323623-A
Country	US
Kind code	B2
Filing date	Aug 8, 2017
Priority date	Sep 26, 2016
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

The present invention relates to an unsaturated fluorinated ether or amine compound of formula (I) with low global warming potential and method of making the compound (I), where R H 1 is and R H 2 are independently selected from H or CH 3 , wherein when R H 1 is CH 3 then R H 2 is H and when R H 2 is CH 3 , then R H 1 is H; X is O or N and when X is O, then n is 1 and R f is a linear or branched perfluorinated alkyl group comprising 1-10 carbon atoms and optionally comprising at least one catenated O or N atom; X is N, then n is 2 and (i) each R f is independently selected from a linear or branched perfluorinated alkyl group comprising 1-8 carbon atoms and optionally comprising at least one catenated O or N atom, or (ii) the two R f 's are bonded together to form a ring structure optionally comprising at least one catenated O or N atom, wherein the ring of the ring structure consists of 5-7 atoms, no more than 10 carbon atoms, and is perfluorinated. The applications of the compound include solvent cleaning, electrolyte solvents or additives, heat transfer, and vapour phase soldering.

First claim

What is claimed is:

1. An unsaturated fluorinated compound of formula (I)

where
R H 1 is and R H 2 are independently selected from H or CH 3 , wherein when R H 1 is CH 3 then R H 2 is H and when R H 2 is CH 3 then R H 1 is H;
X is O or N and when
X is O, then n is 1 and R f is a linear or branched perfluorinated alkyl group comprising 1-10 carbon atoms and optionally comprising at least one catenated O or N atom;
X is N, then n is 2 and (i) each R f is independently selected from a linear or branched perfluorinated alkyl group comprising 1-8 carbon atoms and optionally comprising at least one catenated O or N atom, or (ii) the two R f 's are bonded together to form a perfluorinated ring structure comprising no more than 10 carbon atoms, optionally comprising at least one catenated O or N atom, and wherein the ring of the ring structure consists of 5-7 atoms.

2. The unsaturated fluorinated compound of claim 1 , wherein R H 1 and R H 2 are H.

3. The unsaturated fluorinated compound of claim 1 , wherein when X is O, Rf comprises 1 to 3 carbon atoms.

4. The unsaturated fluorinated compound of claim 1 , wherein when X is N, the two R f 's are bonded together to form a ring structure optionally comprising at least one catenated O or N atom and no more than 7 carbon atoms.

5. The unsaturated fluorinated compound of claim 1 , wherein X is N and the two R f 's is bonded together to form a 6-membered perfluorinated ring comprising a catenated O atom.

6. The unsaturated fluorinated compound of claim 5 , wherein the two R f 's form a morpholine group.

7. The unsaturated fluorinated compound of claim 1 , wherein the two Rf's are bonded together to form a 6-membered perfluorinated ring comprising an additional catenated N atom.

8. The unsaturated fluorinated compound of claim 7 , wherein the two Rf's form an N-perfluoroalkyl piperazine group.

9. The unsaturated fluorinated compound of claim 8 , wherein the perfluoroalkyl is linear or branched and comprises 1-3 carbon atoms.

10. The unsaturated fluorinated compound of claim 1 , wherein the two Rf's form a pyrrolidine group.

11. The unsaturated fluorinated compound of claim 1 , wherein the unsaturated fluorinated compound is selected from:

12. The unsaturated fluorinated compound of claim 1 , wherein the unsaturated fluorinated compound has a degree of fluorination of at least 70%.

13. A composition comprising a purified form of the unsaturated fluorinated compound according to claim 1 .

14. A working fluid comprising the unsaturated fluorinated compound according to claim 1 , wherein the unsaturated fluorinated compound is present in the working fluid in an amount of at least 5% by weight based on the total weight of the working fluid.

15. A cleaning composition comprising the unsaturated fluorinated compound of claim 1 .

16. An electrolyte solvent comprising the unsaturated fluorinated compound of claim 1 .

17. A heat transfer fluid comprising the unsaturated fluorinated compound of claim 1 .

18. A vapor phase soldering fluid comprising the unsaturated fluorinated compound of claim 1 .

19. An apparatus for heat transfer comprising:
a device; and
a mechanism for transferring heat to or from the device, the mechanism comprising a heat transfer fluid that comprises the unsaturated fluorinated compound according to claim 1 .

20. A method of making an unsaturated fluorinated compound, the method comprising:
(i) reacting a perfluorinated allylic compound with a first alcohol in the presence of a free radical initiator to form a second alcohol, wherein the perfluorinated allylic compound comprises a perfluorinated allylic ether or a perfluorinated allylic amine, the first alcohol is a primary alcohol or a secondary alcohol, and the second alcohol is a secondary or tertiary fluorinated alcohol;
(ii) acylating the second alcohol to form a fluorinated ester; and
(iii) vapor phase dehydroacetoxylating the fluorinated ester to form the unsaturated fluorinated compound.

Assignees

• 3M Innovative Properties Co

Inventors

• Smith Sean M
• Bulinski Michael J
• Costello Michael G
• Lamanna William M
• Toso Nicholas A

Classifications

• C07D265/30

  not condensed with other rings · CPC title

• C23G5/028

  containing halogenated hydrocarbons · CPC title

• C11D3/43

  Solvents · CPC title

• H01M10/0569

  characterised by the solvents · CPC title

• C07D241/04

  having no double bonds between ring members or between ring members and non-ring members · CPC title