Nitroxyl Catalysts for Six-Membered Ring Bromolactonization and Intermolecular Bromoesterification of Alkenes with Carboxylic Acids
作者:Katsuhiko Moriyama、Masako Kuramochi、Seiji Tsuzuki、Kozo Fujii、Takeshi Morita
DOI:10.1021/acs.orglett.0c03546
日期:2021.1.15
includes a six-membered ring bromolactonization of alkenyl carboxylic acids catalyzed by AZADO as the nitroxyl radical catalyst, and an intermolecular bromoesterification of alkenes with carboxylic acids using NMO as the N-oxide catalyst. We also accomplished a remote diastereoselective bromohydroxylation via an AZADO-catalyzed six-membered ring bromolactonization and a subsequent ring cleavage reaction
我们开发了一种用溴试剂进行的硝基氧催化烯烃的溴代酯化反应,其中包括由AZADO作为硝基氧基自由基催化剂催化的六元环烯基羧酸的环溴内酯化反应,以及使用NMO作为N-氧化物对烯烃与羧酸的分子间溴化酯化反应。催化剂。我们还通过AZADO催化的六元环溴内酰胺化以及随后与烷基胺的环裂解反应完成了远程非对映选择性溴羟基化反应,以提供具有高非对映选择性的ε-溴-δ-羟基酰胺。