Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States.
J Am Chem Soc. 2020 Apr 1;142(13):5918-5923. doi: 10.1021/jacs.9b13531. Epub 2020 Mar 24.
The reaction of carboxylic acid derivatives with amines to form amide bonds has been the most widely used transformation in organic synthesis over the past century. Its utility is driven by the broad availability of the starting materials as well as the kinetic and thermodynamic driving force for amide bond formation. As such, the invention of new reactions between carboxylic acid derivatives and amines that strategically deviate from amide bond formation remains both a challenge and an opportunity for synthetic chemists. This report describes the development of a nickel-catalyzed decarbonylative reaction that couples (hetero)aromatic esters with a broad scope of amines to form (hetero)aryl amine products. The successful realization of this transformation was predicated on strategic design of the cross-coupling partners (phenol esters and silyl amines) to preclude conventional reactivity that forms inert amide byproducts.
羧酸衍生物与胺反应形成酰胺键,这是过去一个世纪有机合成中最广泛应用的转化。其广泛应用的原因是起始原料的广泛可得性,以及酰胺键形成的动力学和热力学驱动力。因此,发明羧酸衍生物和胺之间新的反应,从策略上偏离酰胺键形成,这对合成化学家来说既是挑战也是机遇。本报告描述了镍催化的脱羰基反应的发展,该反应将(杂)芳基酯与广泛范围的胺偶联,形成(杂)芳基胺产物。这种转化的成功实现是基于交叉偶联伙伴(酚酯和硅基胺)的战略设计,以排除形成惰性酰胺副产物的常规反应性。