Heteroatom-embedded hexa-peri-hexabenzocoronenes (HBCs) display notable properties, but the selective incorporation of heteroatoms into the HBC core makes their synthesis difficult. Now a two-step process for the synthesis of 3a2-azahexabenzocoronenium salts is reported. The process comprises a formal [3 + 3] cycloaddition between azomethine ylides and cyclopropenes, followed by mechanochemical cyclization.
- Xinjiang Zhang
- Donglin Li
- Shingo Ito
