DIKETOXIME MONOMER CONTAINING BENZOPHENONE FRAGMENT AND METHOD OF OBTAINING THEREOF Russian patent published in 2015 - IPC C07C251/32 C07C251/48 C07C251/54 

FIELD: chemistry.

SUBSTANCE: described is a diketoxime monomer, which contains a benzophenone fragment of the structural formula . Also described is a method of the said diketoxime monomer obtaining, consisting in the formation of a dianiondihydroxyl-containing compound in dimethyl-sulphoxide, water distillation by means of azeotrope, condensation of dianione with 4,4'-dichlorobenzophenone with their molar ratio of 2:1, characterised by the fact that as the dihydroxyl-containing compound applied is diketoxime of 4,4' - diacetyldiphenyloxide, dianion (dioximate) is formed by the addition of 4,4'-diacetyldiphenyloxide KOH or NaOH to diketoxime with the molar ratio of 1:2.1 or K₂CO₃ at the molar ratio of 1:1.1; water distillation is carried out with the application of benzene - water or toluene - water azeotrope; condensation of dioxime 4,4'-diacetyldiphenyloxide with 4,4'-dichlorobenzophenone is realised at a temperature of 160°C for 2 hours.

EFFECT: extension of the assortment of monomers with reactionable terminal groups, which react in polycondensation polyheterocyclisation to obtain polymers with a complex of valuable properties.

2 cl, 4 ex