Palladium-Catalyzed Reaction of Arylamine and Diarylacetylene: Solvent-Controlled Construction of 2,3-Diarylindoles and Pentaarylpyrroles
作者:Xiaopeng Chen、Xihui Li、Ningning Wang、Jisong Jin、Ping Lu、Yanguang Wang
DOI:10.1002/ejoc.201200531
日期:2012.8
By choosing DMF and dioxane as solvent, skeletons of indoles and pyrroles were constructed from alkynes and amines in the presence of PdCl2, respectively. These Pd-catalyzed reactions were phosphane-free with high atom efficiency and could be conducted under mild basic conditions. The proposed mechanism for the selective formation of indoles and pyrroles in different solvents is also discussed in this
Oxidative nitrene transfer from azides to alkynes <i>via</i> Ti(<scp>ii</scp>)/Ti(<scp>iv</scp>) redox catalysis: formal [2+2+1] synthesis of pyrroles
作者:Adam J. Pearce、Xin Yi See、Ian A. Tonks
DOI:10.1039/c8cc02623h
日期:——
Catalytic oxidative nitrene transfer from azides with the early transition metals is rare, and has not been observed without the support of redox noninnocent spectator ligands.
Copper-Mediated Reaction of Zirconacyclopentadienes with Azides: A One-Pot Three-Component Synthesis of Multiply Substituted Pyrroles from One Azide and Two Alkynes
作者:Yiqing Zhou、Xiaoyu Yan、Chao Chen、Chanjuan Xi
DOI:10.1021/om400988g
日期:2013.11.11
A general method for the synthesis of multiply substituted pyrroles through zirconocene-mediated coupling of two alkynes and an azide in the presence of CuCl has been achieved.
已经实现了在CuCl存在下通过锆茂介导的两个炔烃和叠氮化物的偶合来合成多取代的吡咯的通用方法。
Copper-Catalyzed Double N-Vinylation of Aromatic Amines: An Efficient Synthesis of Various Substituted N-Arylpyrroles
作者:Qian Liao、Liyun Zhang、Fei Wang、Shutao Li、Chanjuan Xi
DOI:10.1002/ejoc.201000665
日期:——
A simple and efficient approach to various substituted N-arylpyrroles has been developed. The method is based on the copper-catalyzed sequential inter- and intramolecular N-vinylation of aromatic amines. The reactions proceed to afford substituted N-arylpyrroles in good-to-excellent yields using CuI as the precatalyst, tBuONa as the base, and N 1 ,N 2 -dimethylethane-1,2-diamine (DMEDA) as the ligand
Pyrrole compounds, polymers thereof and EL element using the same
申请人:Korea Institute of Science and Technology
公开号:US20040034189A1
公开(公告)日:2004-02-19
A pyrrole compound, polymers thereof and EL element using the same are disclosed. The pyrrole compound and polymers thereof can be used as a material for an organic and polymeric electroluminescence element and/or other optical devices such as an optical switch, sensor, module, waveguide, transistor, laser, light-absorbing body, dielectric substance, membrane and the like.