A Highly Reactive Triboracyclobutane and Its Dianion: Two-Electron Homoaromatics with Nonclassical and Classical σ Skeletons
摘要:
The first triboracyclobutane, 2c, a two-electron homoaromatic having a nonclassical a skeleton, was generated at -80 C and stabilized as its dianion 2a2-, which was characterized by the crystal structure determination of its dilithium salt and which possesses a classical a skeleton.