作者:Vladimir Akhmetov、Mikhail Feofanov、Cordula Ruppenstein、Josefine Lange、Dmitry Sharapa、Marjan Krstić、Frank Hampel、Evgeny A. Kataev、Konstantin Amsharov
DOI:10.1002/chem.202200584
日期:2022.6
We have discovered a dual (i. e., soft and hard) Lewis acidity of alumina that enables rapid one-pot π-extension through the activation of terminal alkynes followed by C-F activation. The tandem reaction introduces an acenaphthene fragment - an essential moiety of geodesic polyarenes. This reaction provides quick access to elusive non-alternant polyarenes such as π-extended buckybowls and helicenes
我们发现了氧化铝的双重(即软和硬)路易斯酸度,可以通过末端炔烃的活化和 CF 活化来实现快速的一锅 π 延伸。串联反应引入了苊片段——测地线聚芳烃的重要部分。该反应通过 1-(2-乙炔基-6-氟苯基)萘部分的三点环化,快速获得难以捉摸的非交替聚芳烃,例如 π 延伸的巴基碗和螺旋烯。通过合成难以捉摸的测地线石墨烯纳米带的前所未有的结构片段,证明了所开发方法的多功能性。