作者:Lingkui Meng、Takao Fujikawa、Motonobu Kuwayama、Yasutomo Segawa、Kenichiro Itami
DOI:10.1021/jacs.6b06486
日期:2016.8.17
A simple yet effective method for the formation of thiophene-fused π-systems is reported. When arylethynyl-substituted polycyclic arenes were heated in DMF in the presence of elemental sulfur, the corresponding thiophene-fused polycyclic arenes were obtained via cleavage of the ortho-C-H bond. Thus, arylethynylated naphthalenes, fluoranthenes, pyrenes, corannulenes, chrysenes, and benzo[c]naphtho[2
报道了一种形成噻吩稠合 π 系统的简单而有效的方法。当芳乙炔基取代的多环芳烃在元素硫存在下在 DMF 中加热时,通过邻位 CH 键的裂解获得相应的噻吩稠合多环芳烃。因此,芳炔化萘、荧蒽、芘、芘、芘和苯并[c]萘并[2,1-p]芘有效地转化为相应的噻吩稠合π-系统。除了多环烃外,噻吩衍生物也容易发生这种反应。该反应的实际效用通过十克规模的制备、一锅两步反应序列和多个噻吩环化来证明。