4-SUBSTITUTED-3-(1-ALKYL-2-CHLORO-1H-INDOL-3-YL)FURAN-2,5-DIONES, SYNTHESIS METHOD THEREOF AND USE IN PHOTOCHEMICAL GENERATION OF STABLE FLUORESCENT COMPOUNDS AND 4,5-SUBSTITUTED-6-ALKYL-1H-FURO[3,4-c]CARBAZOLE-1,3(6H)-DIONES, SYNTHESIS METHOD THEREOF AND USE AS FLUOROPHORES Russian patent published in 2010 - IPC C07D405/04 C07D405/14 C07D491/48 C07D491/147 C07D409/14 C07D491/153 C07D495/14 G03C7/32 C09K11/06 

FIELD: chemistry.

SUBSTANCE: invention relates to novel compounds, specifically to 4-substituted-3-(1-alkyl-2-chloro-1H-indol-3-yl)furan-2,5-diones of general formula I , where R₁=H, C₁-C₆ alkyl; R₂=H, C₁-C₆ alkyl, C₁-C₆ alkoxy; R₃=phenyl, naphthyl, 2-phenyl-1-ethenyl, thienyl, furyl, pyrrolyl, benzothiophenyl, benzofuranyl, indolyl, synthesis method thereof and use as compounds capable of photochemical generation of stable fluorophores of formula II, which can be used, for instance in information storage systems, particularly as photosensitive components of material for three-dimensional recording and storage of information. The invention also relates to novel 4,5-substituted-6-alkyl-1H-furo[3,4-c]carbazole-1,3(6H)diones of general formula II , where R1=H, C1-C6 alkyl; R2=H, C1-C6 alkyl, C1-C6 alkoxy; R4=H, R5=phenyl, R4, R5=benzo, naphtho, thieno, furo, pyrrolo, benzothieno, benzofuro, indolo, method for synthesis of said compounds and use as fluorophores.

EFFECT: obtaining novel compounds and possibility of using said compounds as fluorophores.

14 cl, 2 tbl, 8 ex