FIELD: chemistry.
SUBSTANCE: invention relates to novel compounds in a series of spiro[benzopyran-indolines]. Described is a 6-(1,3-benzimidazo-2-yl)-7-hydroxy-substituted spiro[benzopyran-indoline] of general formula 
1, where R1 is C1-C6 alkyl, R2 is H, halogen.
EFFECT: obtaining a novel compound containing a spirocyclic fragment, having intense fluorescence with abnormally high Stokes shift and developing photochromic properties.
1 cl, 1 tbl, 2 ex
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