5'-(1,3-BENZOTHIAZOL-2-YL)-SUBSTITUTED SPIROINDOLINE-NAPHTHOPYRANS AND USE THEREOF AS PHOTOREVERSIBLE COMPLEXING AGENTS

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to novel compounds in the family of azole-substituted spiroheterocyclic compounds, and specifically 5'-(1,3-benzothiazol-2-yl)-substituted spiro[indoline-naphthopyrans] of general formula , where R¹=C₁-C₆ alkyl, R²=H, C₁-C₆ alkyl, alkoxyl, halogen.;EFFECT: compounds of formula (I) exhibit photoreversible complexing agent properties and can be used, for example, as a sensitive element of photo-controlled chemical sensors of trace amounts of ions of the zinc subgroup of metals with optical response.;2 cl, 1 tbl, 4 ex