Regioselective Formal [3+2] Cycloadditions of Urea Substrates with Activated and Unactivated Olefins for Intermolecular Olefin Aminooxygenation
作者:Fan Wu、Nur‐E Alom、Jeewani P. Ariyarathna、Johannes Naß、Wei Li
DOI:10.1002/anie.201904662
日期:2019.8.19
A new class of intermolecular olefin aminooxygenation reaction is described. This reaction utilizes the classic halonium intermediate as a regio‐ and stereochemical template to accomplish the selective oxyamination of both activated and unactivated alkenes. Notably, urea chemical feedstock can be directly introduced as the N and O source and a simple iodide salt can be utilized as the catalyst. This
描述了一类新的分子间烯烃氨氧化反应。该反应利用经典的intermediate中间体作为区域和立体化学模板来完成活化和未活化烯烃的选择性氧化胺化反应。值得注意的是,可以将尿素化学原料直接作为N和O源引入,并且可以将简单的碘化物盐用作催化剂。正式的[3 + 2]环加成过程为具有有用的选择性和官能团耐受性的一系列有用杂环产品提供了高度模块化的入口。