An interesting trend for the absorption of the synthesized derivatives 4 and 6 was observed when electron-donating substituents were present in the phenyl ring, which led to an increase in the intensity of the absorption and emission wavelengths ( Supporting Information File 1 , Figure S3).
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Synthesis of pyrrole-fused dibenzoxazepine/dibenzothiazepine/triazolobenzodiazepine derivatives via isocyanide-based multicomponent reactions.
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