Short and Efficient Synthesis of Coronene Derivatives via Ruthenium-Catalyzed Benzannulation Protocol
2005; American Chemical Society; Volume: 70; Issue: 24 Linguagem: Inglês
10.1021/jo0512599
ISSN1520-6904
AutoresHung‐Chin Shen, Jhih‐Meng Tang, Hsu‐Kai Chang, Chia‐Wei Yang, Rai‐Shung Liu,
Tópico(s)Catalytic Alkyne Reactions
Resumo[reaction: see text] TpRuPPh3(CH3CN)2PF6 (3 mol %) was very active in catalytic benzannulation of 1-phenyl-2-ethynylbenzenes in dichloroethane (60 degrees 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 loading (10 mol %).
Referência(s)