Short and Efficient Synthesis of Coronene Derivatives via Ruthenium-Catalyzed Benzannulation Protocol
作者:Hung-Chin Shen、Jhih-Meng Tang、Hsu-Kai Chang、Chia-Wei Yang、Rai-Shung Liu
DOI:10.1021/jo0512599
日期:2005.11.1
TpRuPPh3(CH3CN)2PF6 (3 mol %) was very active in catalytic benzannulation of 1-phenyl-2-ethynylbenzenes in dichloroethane (60 °C, 36 h) to afford phenanthrene in 95% yield. This method is applicable to the synthesis of various polycyclic aromatic hydrocarbons via two- and four-fold benzannulations, including various substituted coronene derivatives (53−86% yields) using this catalyst at a moderate
TpRuPPh 3(CH 3 CN)2 PF 6(3 mol%)在1-苯基-2-乙炔基苯在二氯乙烷中的催化苯环化反应中非常活泼(60°C,36 h),以95%的收率得到菲。该方法适用于使用中等负载量(10 mol%)的该催化剂通过两倍和四倍的苯环合成合成各种多环芳烃,包括各种取代的co烯衍生物(53-86%的收率)。