Thienoacenes are crucial for organic electronics, yet synthesizing them via one-step C–S bond formation remains challenging. Here, the authors demonstrate an electrochemical approach using S-methoxymethyl protected diarylacetylenes in the presence of Bu4NBr as a halogen mediator, achieving efficient double C–S cyclization and expanding thienoacene synthesis.
- Koichi Mitsudo
- Takuya Nagahara
- Seiji Suga
