6′′-hexaisopropyl-[1,1′:3′,1′′-terphenyl]-2′-yl)borane with tert-butyl lithium at low temperatures yields a highly strained benzoborirene that is kinetically stabilized by the bulky terphenyl substituent. The target compound withstands heating to 80 °C, and represents the first benzoborirene fully characterized by single-crystal X-ray crystallography. The bond length pattern of the six-membered ring of the parent benzoborirene
(2-
溴苯基)
氯(2,2'',4,4'',6,6''-六异丙基-[1,1':3',1''-三
联苯]-2'-基的形式还原)
硼烷与
叔丁基锂在低温下产生高度应变的苯并
硼烯,其通过庞大的三
联苯取代基进行动力学稳定。目标化合物可承受加热至 80 °C,并代表第一个通过单晶 X 射线晶体学完全表征的苯并
硼烯。母体苯并
硼烯的六元环的键长模式遵循反米尔斯-尼克松畸变。