AbstractA palladium‐catalyzed reaction of N,N‐dimethyl‐2‐alkynylanilines with isocyanides is reported, leading to the formation of 3‐cyanoindoles and 3‐amidylindoles. The isocyanide insertion is the key step during the process, and the presence of water is essential for the formation of 3‐amidylindoles.magnified image
Direct Transformation of <i>N</i>,<i>N</i>-Dimethylformamide to −CN: Pd-Catalyzed Cyanation of Heteroarenes via C–H Functionalization
作者:Shengtao Ding、Ning Jiao
DOI:10.1021/ja204063z
日期:2011.8.17
This paper describes the direct cyanation of indoles and benzofurans employing N,N-dimethylformamide (DMF) as both reagent and solvent. Isotopic labeling experiments indicated that both the N and the C of the cyano group derived from DMF. This transformation offers an alternative method for preparing aryl nitriles, though it is currently limited in scope to indoles and benzofurans.
本文介绍了使用 N,N-二甲基甲酰胺 (DMF) 作为试剂和溶剂对吲哚和苯并呋喃进行直接氰化。同位素标记实验表明,氰基的 N 和 C 均来自 DMF。这种转化提供了一种制备芳基腈的替代方法,但目前仅限于吲哚和苯并呋喃。
Switchable Synthesis of 3-Cyanoindoles and 3-Amidylindoles<i>via</i>a Palladium-Catalyzed Reaction of<i>N</i>,<i>N</i>-Dimethyl-2-alkynylaniline with Isocyanide
AbstractA palladium‐catalyzed reaction of N,N‐dimethyl‐2‐alkynylanilines with isocyanides is reported, leading to the formation of 3‐cyanoindoles and 3‐amidylindoles. The isocyanide insertion is the key step during the process, and the presence of water is essential for the formation of 3‐amidylindoles.magnified image