Dirhodium(II)-catalyzed ortho C–H amination of N-alkyldiarylamines has been developed. The C(sp2)–H amination proceeded with high preference over C(sp3)–H amination to provide N-aryl-o-phenylenediamines in up to 80% yield. With the use of unsymmetric diarylamines as substrates, selective amination of one of two distinct aromatic rings was also achieved.

中文翻译：

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铱（Ii）催化

已经开发了D- （II）催化的N-烷基二芳基胺的邻位C–H胺化反应。C（sp 2 ）-H胺化反应比C（sp 3 ）-H胺化反应具有更高的优先级，可提供N-芳基-邻-苯二胺，产率高达80％。通过使用不对称二芳基胺作为底物，还实现了两个不同芳环之一的选择性胺化。