Rh-catalyzed alkene oxidation: a highly efficient and selective process for preparing N-alkoxysulfonyl aziridines
作者:Kiran Guthikonda、Paul M. Wehn、Brian J. Caliando、J. Du Bois
DOI:10.1016/j.tet.2006.07.099
日期:2006.12
Unique alkoxysulfonyl aziridine heterocycles were prepared through selective intra- and intermolecular alkene oxidation reactions. These methods are general and perform efficiently at low Rh-catalyst loadings (1–2 mol %) with only a slight excess of an inexpensive commercial oxidant, PhI(OAc)2. For intermolecular processes, trichloroethylsulfamate was identified as a novel and markedly effective N-atom
通过选择性的分子内和分子间烯烃氧化反应制备了独特的烷氧基磺酰基氮丙啶杂环。这些方法是通用的,并且在少量Rh催化剂负载量(1-2 mol%)下有效执行,仅略有过量的廉价商业氧化剂PhI(OAc)2。对于分子间方法,三氯乙基氨基磺酸盐被确定为一种新型且显着有效的N原子源,可在有限量的烯烃底物条件下进行反应。氮丙啶产物易于开亲核开环;这些方法具有区域选择性,可通过直接添加Me 2 SO来制备包括α-氨基酮在内的多官能胺。