Non-Pyrolytic Syntheses of Buckybowls: Corannulene, Cyclopentacorannulene, and a Semibuckminsterfullerene
作者:Andrzej Sygula、Peter W. Rabideau
DOI:10.1021/ja991169j
日期:1999.9.1
Corannulene (1), cyclopentacorannulene (2), and a C30H12 semibuckminsterfullerene (3) have been prepared by non-pyrolytic methods employing bromomethyl/dibromomethyl and/or dibromomethyl/dibromomethyl coupling with low-valent titanium or vanadium. Reductive coupling of tetrakis(dibromomethyl)fluoranthene (8) with vanadium(III) chloride and lithium aluminum hydride affords corannulene in 70−75% yield
Corannulene (1)、cyclopentacorannulene (2) 和 C30H12 semibuckminsterfullerene (3) 已通过非热解方法制备,采用溴甲基/二溴甲基和/或二溴甲基/二溴甲基与低价钛或钒偶联。四(二溴甲基)荧蒽 (8) 与氯化钒 (III) 和氢化铝锂的还原偶联以 70-75% 的产率提供芴烯。类似地,六(二溴甲基)荧蒽(13)以 20-30% 的产率生成环戊二烯,十二溴(八甲基)茚并荧蒽(6)以 20% 的产率生成半巴克明斯特富勒烯(3)。