Ru-Catalyzed Branched versus Linear Selective C3-Alkylation of 2-Aroylbenzofurans with Acrylates via CH Activation
作者:Yadagiri Kommagalla、Kolluru Srinivas、Chepuri V. Ramana
DOI:10.1002/chem.201400401
日期:2014.6.23
carbonyl‐directed C3H activation and alkylation of 2‐aroylbenzo[b]furans with acrylates occurs selectively either in a linear or branched fashion, depending on the catalyst employed; [Ru(p‐cymene)Cl2]2 or Ru(PPh3)3Cl2, respectively. Two alternate pathways—funded upon the differences in steric and electronic preferences of these two complexes—is proposed for the selectivity of linear versus branched products.
羰定向C3 ħ活化和2-芳酰基苯并[烷基化b ]呋喃与丙烯酸酯选择性地要么发生在直链或支链的方式,根据所用的催化剂; 分别为[Ru(p- cymene)Cl 2 ] 2或Ru(PPh 3)3 Cl 2。针对线性和支链产物的选择性,提出了两种替代途径(由这两种配合物的空间和电子偏好差异决定)。