Department of Chemistry, University of Illinois, Urbana-Champaign, 600 S. Mathews Ave, Urbana, IL 61801, USA.
Angew Chem Int Ed Engl. 2011 Jan 3;50(1):86-95. doi: 10.1002/anie.201002354.
Until recently, ammonia had rarely succumbed to catalytic transformations with homogeneous catalysts, and the development of such reactions that are selective for the formation of single products under mild conditions has encountered numerous challenges. However, recently developed catalysts have allowed several classes of reactions to create products with nitrogen-containing functional groups from ammonia. These reactions include hydroaminomethylation, reductive amination, alkylation, allylic substitution, hydroamination, and cross-coupling. This Minireview describes examples of these processes and the factors that control catalyst activity and selectivity.
直到最近,氨很少在均相催化剂的催化转化中屈服,而且在温和条件下选择性地形成单一产物的这类反应的发展遇到了许多挑战。然而,最近开发的催化剂已经允许几类反应从氨中生成含氮官能团的产物。这些反应包括羟胺甲基化、还原胺化、烷基化、烯丙基取代、氨氢化和交叉偶联。本综述描述了这些过程的实例以及控制催化剂活性和选择性的因素。