Catalytic hydroalkylation of an alkyne with methyl ether was accomplished. Intramolecular addition of the C−H bond of a methoxy group in 1‐methoxy‐2‐(arylethynyl)benzenes across a carbon–carbon triple bond took place efficiently either in toluene at 110 °C or in p‐xylene at 135 °C in the presence of an iridium catalyst. The initial 5‐exo cyclization products underwent double‐bond migration during the
用甲基醚完成
炔烃的催化加氢烷基化。在110°C的
甲苯中或在135°C的135°C的
对二甲苯中,通过碳-碳三键在1-甲氧基-2-(芳基
乙炔基)苯中的甲氧基C-H键分子内加成有效。
铱催化剂的存在。最初的5-exo环化产物在反应过程中经历了双键迁移,从而以高收率获得了3-(芳基甲基)
苯并呋喃。