AbstractAn efficient iron(III) chloride catalyzed synthesis of highly substituted indolyltetrahydroquinoline derivatives from easily available starting materials, including indolylnitroalkenes, substituted anilines and various aldehydes is reported. The reaction utilized strong electron deficient dienophiles like indolylnitroalkene via a Povarov approach.The methodology shows good functional group tolerance and can be used to prepare fused indolo‐benzonaphthyridine derivatives.magnified image
FeCl<sub>3</sub> Catalyzed Regioselective <i>C</i>-Alkylation of Indolylnitroalkenes with Amino Group Substituted Arenes
作者:Manoj R. Zanwar、Veerababurao Kavala、Sachin D. Gawande、Chun-Wei Kuo、Wen-Chang Huang、Ting-Shen Kuo、Hsiu-Ni Huang、Chiu-Hui He、Ching-Fa Yao
DOI:10.1021/jo4025368
日期:2014.2.21
An efficient FeCl3 catalyzed protocol for the synthesis of amino functionalized indolylnitroalkanes from easily available precursor indolylnitroalkenes and substituted amines has been developed. Regioselective C-alkylation in the presence of free amino substituted arenes occurred. The scope of this methodology shows good functional group tolerance, and further, this protocol was used to prepare indolylquinoline derivatives.