direct C–H functionalization of a wide range of aromatic nitrogen heterocycles with cyclopropanols under acid-free conditions. This reaction can be conducted on gram-scale and with low catalyst loadings (as low as 1%), which is rare for silver-catalyzed Minisci-type reactions. Moreover, reactivity trends, as well as steric and calculated electronic properties of the heterocycles, strongly suggest that
定义明确的均相
银预催化剂可用于在无酸条件下用
环丙醇直接对各种芳族氮杂环进行C–H直接官能化。该反应可以以克为单位进行,并且催化剂的负载量低(低至1%),这在
银催化的Minisci型反应中很少见。此外,反应性趋势以及杂环的空间和电子性质,强烈表明原位形成的
银-杂环配合物可作为氧化还原活性催化剂和杂环的
路易斯酸活化剂,并且杂环底物的电子性质会发生变化。所得配合物的反应性。