Efficient Copper-Catalyzed Direct Intramolecular Aminotrifluoromethylation of Unactivated Alkenes with Diverse Nitrogen-Based Nucleophiles
作者:Jin-Shun Lin、Ya-Ping Xiong、Can-Liang Ma、Li-Jiao Zhao、Bin Tan、Xin-Yuan Liu
DOI:10.1002/chem.201303387
日期:2014.1.27
A mild, convenient, and step‐economical intramolecular aminotrifluoromethylation of unactivated alkenes with a variety of electronically distinct, nitrogen‐based nucleophiles in the presence of a simple copper salt catalyst, in the absence of extra ligands, is described. Many different nitrogen‐based nucleophiles (e.g., basic primary aliphatic and aromatic amines, sulfonamides, carbamates, and ureas)
描述了在简单的铜盐催化剂存在下,在没有额外配体的情况下,轻度,方便且经济的未活化烯烃分子内氨基三氟甲基化与各种电子上不同的,基于氮的亲核试剂。在这种新的氨基三氟甲基化反应中,可以使用许多不同的基于氮的亲核试剂(例如碱性伯脂肪族和芳香族胺,磺酰胺,氨基甲酸酯和尿素)。氨基三氟甲基化过程可通过相应无环起始原料的直接双官能化策略,以良好或优异的收率直接获得各种取代的含CF 3的吡咯烷或二氢吲哚。进行了机理研究,并提出了合理的机制。