Palladium-Catalyzed Direct C2 Arylation of<i>N</i>-Substituted Indoles with 1-Aryltriazenes
作者:Can Liu、Tao Miao、Lei Zhang、Pinhua Li、Yicheng Zhang、Lei Wang
DOI:10.1002/asia.201402274
日期:2014.9
A novel and efficient palladium‐catalyzed C2 arylation of N‐substituted indoles with 1‐aryltriazenes for the synthesis of 2‐arylindoles was developed. In the presence of BF3⋅OEt2 and palladium(II) acetate (Pd(OAc)2), N‐substituted indoles reacted with 1‐aryltriazenes in N,N‐dimethylacetamide (DMAC) to afford the corresponding aryl–indole‐type products in good to excellent yields.
开发了一种新颖且有效的钯催化N-取代的吲哚与1-芳基三氮烯的C2芳基化反应,用于合成2-芳基吲哚。在BF的存在3 ⋅ OET 2和钯(II),乙酸钯(Pd(OAc)2),Ñ -取代的吲哚与1- aryltriazenes反应Ñ,Ñ二甲基乙酰胺(DMAC),得到相应的芳基吲哚类产品的良率到优等。