Co2(CO)8 as a convenient in situ CO source for the direct synthesis of benzamides from aryl halides (Br/I) via aminocarbonylation
作者:Poongavanam Baburajan、Kuppanagounder P. Elango
DOI:10.1016/j.tetlet.2013.12.062
日期:2014.1
mild, and functional group tolerant method for the direct synthesis of benzamides from aryl halides (Br, I) via aminocarbonylation, using solid Co2(CO)8 as a convenient CO source, has been demonstrated. The developed method is applicable to a wide variety of 1° and cyclic and acyclic 2° amines. Nitro substituted (o, m and p) aryl halides have easily been converted to the corresponding benzamides,
已经证明了使用固态Co 2(CO)8作为方便的CO源,通过氨基羰基化从芳基卤化物(Br,I)直接合成苯甲酰胺的快速,温和且具有官能团耐受性的方法。所开发的方法适用于多种1°以及环状和非环状2°胺。使用这种原位羰基化方法在微波辐射下,硝基取代的(o,m和p)芳基卤化物很容易被转化为相应的苯甲酰胺,而不会还原硝基。