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An Efficient Borafluorene for the Construction of Extended π-Conjugated Systems
Fukushima, Shoji and coworkers reported that 9-chloro-9-borafluorene mediates sequential alkyne insertion (1,2-carboboration) and oxidative deborylation/Csp2–Csp2 coupling reactions, affording extended π-conjugated molecules. The sequential reactions can be performed in a one-pot fashion and are very useful for the construction of a wide variety of π"-conjugated systems, which are potentially applicable to organic electronics.
- Boron-mediated sequential alkyne insertion and C–C coupling reactions affording extended π-conjugated molecules