Bisimide compound and process for the production thereof
AssigneeTomoegawa Paper Co., Ltd.
InventorsToshio Tagami, Yukinori Sakumoto, Takeshi Hashimoto
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Abstract
A bisimide compound of the following general formula (I). ##STR1## (wherein each of the R's is an alkyl group having 1 to 4 carbon atoms, a phenyl group or a phenyl group substituted with an alkyl or alkoxy group having 1 to 4 carbon atoms, a plurality of these R's may be the same or different, each of the Z's is ##STR2## a plurality of these Z's may be the same or different, Y is an arylene group or an aryleneoxy group whose terminal oxygen atom bonds to (CH.sub.2).sub.n, n is an integer of 0 to 20, and m is an integer of 1 to 30.), and a process for the production of the above bisimide compound, which comprises reacting a bisamic acid corresponding to this bisimide compound in a cyclodehydration reaction.
Claims3
A bisimide compound having the following formula (I):
- ##STR9## wherein each R is independently alkyl having 1 to 4 carbon atoms, phenyl or phenyl substituted with alkyl or alkoxy having 1 to 4 carbon atoms, n is an integer from 0 to 20, m is an integer from 1 to 30, Y is ##STR10## and Z is ##STR11##
A process for the production of a bisimide compound having the following formula (I):
- ##STR12## which comprises cyclizing a bisamic acid having the following formula (II) in the presence of a catalyst and a dehydrating agent at a temperature in the range from room temperature to a reflux temperature of an organic solvent:
- ##STR13## wherein in formulas (I) and (II), each R is independently alkyl having 1 to 4 carbon atoms, phenyl or phenyl substituted with alkyl or alkoxy having 1 to 4 carbon atoms, n is an integer from 0 to 20, m is an integer from 1 to 30, Y is ##STR14## or aryleneoxy, and each Z is independently ##STR15## provided that when Y is aryleneoxy the terminal oxygen atom of the aryleneoxy bonds to (CH.sub.2).sub.n, the dehydrating agent being at least one agent selected from the group consisting of phosphorus pentoxide, phosphoric acid, polyphosphoric acid, sulfuric acid, sulfuric anhydride, sodium sulfate, calcium oxide, barium oxide, acetic anhydride, butyric anhydride, propanoic anhydride, succinic anhydride, valeric anhydride, glutaric anhydride, benzoic anhydride, and p-toluenesulfonic acid and the catalyst being at least one catalyst selected from the group consisting of sodium acetate, nickel acetate, cobalt acetate, and hydrates thereof.
Dependencies are inferred from the claim text.