Claims
- 1. A 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetamide compound, useful as a charge-control agent, having the following structure wherein n is 1 or 2; R and R1 independently represent hydrogen; linear, branched or cyclic, substituted or unsubstituted C1 to C18 alkyl; substituted or unsubstituted C6 to C10 aryl; substituted or unsubstituted C7 to C11 aralkyl; substituted or unsubstituted C5 to C10 heterocyclic ring with the proviso that R and R1 are not simultaneously hydrogen; or R and R1, together with N form a ring structure; with the proviso that when n is 2, then R1 is a divalent group.
- 2. The charge-control agent of claim 1 wherein R and R1 independently represent hydrogen; substituted C1 to C18 alkyl, substituted or unsubstituted C6 to C10 aryl; or heterocyclic ring system.
- 3. The 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamide of claim 1 wherein R1 represents 2-benzothiazolyl, 4-chlorophenyl, 4-methoxyphenyl, 3-methylphenyl, 3-chlorophenyl, 2-nitrophenyl, 3-nitro-4-methylphenyl, 3,5,dichlorophenyl, 2-chloroethyl, methyl, t-butyl, octadecyl, benzyl, cyclohexyl, phenyl, 1-naphthyl, 3-nitrophenyl, 4-nitrophenyl, 3-methoxy-4-methylphenyl, 3,4,5-trichlorophenyl, 2,3,5,6-tetrafluorophenyl, 2,3,4,5,6-pentafluorophenyl and 4-nitro-1-naphthyl; R represents hydrogen or methyl; or R and R1, together with N, represent ethyleneimine, azetidine, pyrrolidine, piperidine or hexamethyleneimine.
- 4. The 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetarnide of claim 2 wherein R1 represents phenyl, 4-chlorophenyl or 3-nitrophenyl and R represents hydrogen.
- 5. A method of making a 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetamide according to claim 1 comprising the reaction of 5-(1,2-benzisothiazol-3(2H)ylidene 1,1-dioxide)-2,2-dimethyl-1,3-dioxane-4,6 dione with a primary, or secondary amine, ammonia, or combinations thereof.
CROSS-REFERENCE TO RELATED APPLICATION
This is a Divisional of application Ser. No. 09/465,190 filed Dec. 15, 1999, now allowed.
US Referenced Citations (14)
Non-Patent Literature Citations (1)
Entry |
Melchiorre et al., CA 76:14416, 1972. |