Benzylic amines are synthesized in yield up to 90% by the Ru(TPP)CO -catalyzed amination of both exocyclic and endocyclic benzylic C-H bonds. The choice of arylazides as nitrogen sources confers to the methodology a good sustainability due to the formation of molecular nitrogen as the only stoichiometric by-product. A preliminary mechanistic investigation evidenced a critical role of the hydrocarbon concentration to drive the chemoselectivity of the reaction.
通过 Ru(TPP)CO 催化外环和内环苄基 C-H 键的胺化反应,可合成出产率高达 90% 的苄胺。由于分子氮是唯一的化学副产物,选择芳基叠氮化物作为氮源使该方法具有良好的可持续性。初步的机理研究表明,碳氢化合物浓度对反应的化学选择性起着关键作用。