The solution-phase synthesis of corannulene has been modified and it is now possible to prepare multi gram quantities of corannulene more efficiently, with considerably less toxic reagents. Cross-coupling of bromocorannulene with TMS-acetylene and phenylacetylene affords novel ethynyl-containing corannulene derivatives. Deprotection of TMS-ethynyl corannulene affords the naked alkyne, which can be cross-coupled with pentafluoroiodobenzene and bromocorannulene to afford the appropriate alkyne derivatives. The photophysical properties of this new and novel family of alkyne-containing corannulene derivatives has been evaluated and all of the new derivatives exhibit low to moderate quantum efficiencies.
相溶液相合成法已对corannulene进行了修改,现在可以更高效地准备多克量的corannulene,并且所需的毒性试剂显著减少。
溴corannulene与TMS-
乙炔和
苯乙炔的交叉耦合反应生成新型的含
乙炔的corannulene衍
生物。去保护TMS-
乙炔corannulene可以得到裸炔,这种烃可以与五
氟碘苯和
溴corannulene进行交叉耦合反应,从而生成适当的
炔烃衍
生物。这一新颖的含炔corannulene衍
生物家族的光物理特性已经被评估,所有新增衍
生物均显示出低至中等的量子效率。