Ruthenium-Catalyzed C6-Propenylation Reactions of Substituted Pyridine Derivatives: Directed and Direct CH Activation
作者:Yogesh Goriya、Chepuri V. Ramana
DOI:10.1002/chem.201202379
日期:2012.10.15
One stone, two birds: Aryl pyridine derivatives in the presence of allyl bromide and a catalytic amount of [Ru(p‐cymene)Cl2}2] undergo an unexpected direct C6‐propenylation reaction of the pyridine moiety. A one‐pot one‐catalyst three‐component reaction involving sequential and selective direct and directed CH activation reactions was also developed (see scheme).
一颗石头,两只鸟:在存在烯丙基溴和催化量的[Ru(p- cymene)Cl 2 } 2 ]的情况下,芳基吡啶衍生物经历了吡啶部分的意外的直接C6-丙烯基化反应。涉及顺序和选择性的直接和定向C A一锅一催化剂三组分反应 ħ活化反应也被开发(见方案)。