Compounds and Methods for Catalytic Directed ortho Substitution of Aromatic Amides and Esters
申请人:Zhao Yigang
公开号:US20120302752A1
公开(公告)日:2012-11-29
Methods are described for efficient and regioselective reactions that are Ru-catalyzed and either (i) amide-directed C—H, C—N, C—O activation/C—C bond forming reactions, (ii) ester-directed C—O and C—N activation/C—C bond forming reactions, or (iii) amide-directed C—O activation/hydrodemethoxylation reactions. All of these reactions of directed C—H, C—N, C—O activation/coupling reactions establish a catalytic base-free DoM-cross coupling process at non-cryogenic temperature. High regioselectivity, yields, operational simplicity, low cost, and convenient scale-up make these reactions suitable for industrial applications. Many previously unknown amide-substituted or ester-substituted aryl and heteroaryl compounds are presented with synthetic details also provided.
描述了一种高效和区域选择性反应的方法,这些反应是以钌为催化剂的,可以是(i)酰胺导向的C—H、C—N、C—O活化/C—C键形成反应,(ii)酯导向的C—O和C—N活化/C—C键形成反应,或者(iii)酰胺导向的C—O活化/脱甲氧基反应。所有这些导向C—H、C—N、C—O活化/偶联反应在非低温下建立了一个无催化剂碱的DoM-交叉偶联过程。高区域选择性、产率、操作简便、低成本和便于放大规模使得这些反应适用于工业应用。还提供了许多以前未知的酰胺取代或酯取代的芳基和杂环芳基化合物,同时提供了合成细节。