Rhodium(II)-Catalyzed Synthesis of<i>N</i>-Aryl-<i>N′</i>-tosyldiazenes from Primary Aromatic Amines Using (Tosylimino)aryliodinane: A Potent Stable Surrogate for Diazonium Salts
作者:Motoki Ito、Arisa Tanaka、Kazuhiro Higuchi、Shigeo Sugiyama
DOI:10.1002/ejoc.201601627
日期:2017.3.3
The first example of the single-step synthesis of N-aryl-N'-tosyldiazenes from primary aromatic amines is described. A wide range of aromatic amines provided the corresponding products in high yields via an N−N bond formation with Rh(II)-nitrene intermediates, generated in situ from dirhodium(II) complex catalysts and (tosylimino)-2,4,6-trimethylphenyliodinane (TsN=IMes), followed by oxidation. The
描述了从芳香伯胺一步合成 N-芳基-N'-甲苯磺酰基二氮烯的第一个例子。范围广泛的芳香胺通过与 Rh(II)-硝烯中间体形成 NN 键以高产率提供相应的产物,由二铑 (II) 配合物催化剂和 (tosylimino)-2,4,6- 原位生成三甲基苯基碘烷 (TsN=IMes),然后氧化。合成的 N-芳基-N'-甲苯磺酰基二氮烯已成功证明可作为重氮盐在芳香伯胺的两步脱氨基转化中的有效稳定替代物。