Isotellurazolo[1,5-a]tellurazoles are disclosed. These heterocycles can be prepared by reacting a diarylformamidine with an aromatic tellurazolium salt which is substituted at its 2 ring position with a methine group precursor. The product heterocycles are useful directly for their blue light absorption and in forming stable heterocyclic nuclei containing compounds, such as a photographic addenda.
本文披露了异
碲唑[1,5-a]
碲唑。这些杂环可以通过将二芳基甲酰胺与芳香族
碲唑盐反应来制备,该
碘盐在其2环位置被甲基基前体取代。产品杂环不仅可以直接用于其蓝光吸收,还可以用于形成稳定的含杂环核的化合物,例如摄影添加剂。