The present invention relates to compounds of formula (A), wherein Z is NR10 or O. These compounds represent novel acridinium and xanthylium salts having an unprecedented substituted heterocyclic core. They are useful as fluorescent dyes or precursors thereof in different applications including various imaging and sensing techniques, and, in particular, as photosensitizers and hereby preferably as photocatalysts. The present invention further relates to processes for preparing the inventive compounds via 1,5-organodimetallic reagents from double directed ortho-metalation reactions or combined halogen-metal exchange/directed ortho-metalation reactions.
本发明涉及式(A)化合物,其中Z为NR10或O。这些化合物代表了具有前所未有的取代杂环核心的新型
吖啶鎓盐和黄原酸盐。它们可作为荧光
染料或其前体用于不同的应用领域,包括各种成像和传感技术,特别是作为光敏剂和光催化剂。本发明进一步涉及通过 1,5-有机二
金属试剂从双定向正
金属化反应或卤素-
金属交换/定向正
金属化联合反应制备本发明化合物的工艺。