The allylation of electron-rich arenes with allyl tosylate proceeded at 0 °C in the presence of [Rh(nbd)(CH3CN)2]PF6. Various oxygenated arenes were allylated with high para-selectivity in almost all cases. Especially in the reaction of anisoles, the tendency was remarkable.
富电子
芳烃与烯丙基对
甲苯磺酸酯在[Rh(nbd)(CH3CN)2]PF6的存在下,于0°C进行烯丙基化反应。在几乎所有情况下,各种含氧化合物
芳烃都能高选择性地发生对位烯丙基化。特别是在
茴香醚的反应中,这一趋势表现得尤为显著。