A hydrofluoroether compound represented by the following general formula:

##STR00001##

A hydrofluoroether compound represented by the following general formula:

##STR00001##

In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or an N-substituted diamino derivative thereof or a salt of 1,1-diamino-2,2-dinitroethylene or of the N-substituted diamino derivative, a carbodiimide is reacted with a dinitromethane anion. The reaction of the carbodiimide with the dinitromethane anion takes place in a solution.

In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or an N-substituted diamino derivative thereof or a salt of 1,1-diamino-2,2-dinitroethylene or of the N-substituted diamino derivative, a carbodiimide is reacted with a dinitromethane anion. The reaction of the carbodiimide with the dinitromethane anion takes place in a solution.

In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or a salt thereof, an isourea derivative cation, which consists of a C(NH.sub.2)(NH.sub.2.sup.+) radical and a nucleofugal leaving group bonded to the carbon atom of the C(NH.sub.2) (NH.sub.2.sup.+) radical, is reacted with a dinitromethane anion. The reaction of the isourea derivative cation with the dinitromethane anion takes place in a solution.

In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or a salt thereof, an isourea derivative cation, which consists of a C(NH.sub.2)(NH.sub.2.sup.+) radical and a nucleofugal leaving group bonded to the carbon atom of the C(NH.sub.2) (NH.sub.2.sup.+) radical, is reacted with a dinitromethane anion. The reaction of the isourea derivative cation with the dinitromethane anion takes place in a solution.

A hydrofluoroolefin is represented by the following general formula (A): in which, Rf.sub.1 and Rf.sub.2 are (i) independently linear or branched fluoroalkyl groups having with 1-8 carbon atoms and optionally include one or more catenated heteroatoms; or (ii) bonded together to form a ring structure having 4-8 carbon atoms and optionally include one or more catenated heteroatoms; is CF.sub.3, F, H; is F or H; is CF.sub.3, F, CF.sub.2H, CFH.sub.2, or CH.sub.3, and the compound includes a total of 1-4 H atoms; and with the provisos that at least one of and is F or H; when is CF.sub.3 or F, at least one of and is H; when is CH.sub.3, at least one of and is F, and when is CF.sub.3, then is H and is F; wherein at least one of Rf.sub.1 and Rf.sub.2 have two or more carbon atoms.

##STR00001##

A hydrofluoroolefin is represented by the following general formula (A): in which, Rf.sub.1 and Rf.sub.2 are (i) independently linear or branched fluoroalkyl groups having with 1-8 carbon atoms and optionally include one or more catenated heteroatoms; or (ii) bonded together to form a ring structure having 4-8 carbon atoms and optionally include one or more catenated heteroatoms; is CF.sub.3, F, H; is F or H; is CF.sub.3, F, CF.sub.2H, CFH.sub.2, or CH.sub.3, and the compound includes a total of 1-4 H atoms; and with the provisos that at least one of and is F or H; when is CF.sub.3 or F, at least one of and is H; when is CH.sub.3, at least one of and is F, and when is CF.sub.3, then is H and is F; wherein at least one of Rf.sub.1 and Rf.sub.2 have two or more carbon atoms.

##STR00001##

A hydrofluoroolefin compound represented by the following general formula (I): where, Rh is CHCH.sub.2 or C(CH.sub.3)CH.sub.2; and (i) x is O; n is 1; Y is F; Rf.sub.2 is F; and Rf.sub.1 is a linear or branched fluorinated alkyl group having 1-10 carbon atoms and optionally includes one or more catenated heteroatoms selected from O, N, and S; or ({umlaut over ()}) x is N, n is 2, Y is F or CF.sub.3; Rf.sub.2 is F or CF.sub.3; and (a) each Rf.sub.1 is bonded to x, and is independently a linear or branched fluorinated alkyl group having 1-8 carbon atoms and optionally includes one or more catenated heteroatom selected from O, N or S; or (e) the Rf.sub.1 groups are bonded together to form a ring structure having 4 to 8 carbon atoms that optionally includes one or more catenated heteroatoms selected from O, N, or S; with the proviso that when YCF.sub.3, then Rf.sub.2F.

##STR00001##

A hydrofluoroether compound represented by the following general formula (I).

##STR00001##