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High‐Valent Pentamethylcyclopentadienylcobalt(III) or ‐iridium(III)‐Catalyzed CH Annulation with Alkynes: Synthesis of Heterocyclic Quaternary Ammonium Salts
Author(s) -
Lao YeXing,
Zhang ShangShi,
Liu XuGe,
Jiang ChunYong,
Wu JiaQiang,
Li Qingjiang,
Huang ZhiShu,
Wang Honggen
Publication year - 2016
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201600194
Subject(s) - annulation , chemistry , iridium , catalysis , ammonium , substrate (aquarium) , functional group , medicinal chemistry , organic chemistry , combinatorial chemistry , oceanography , polymer , geology
Nine types of diversely fused heterocyclic quaternary ammonium salts were constructed through an oxidative CH annulation reaction. Both high‐valent pentamethylcyclopentadienylcobalt(III) and pentamethylcyclopentadienyliridium(III) were found to be effective as catalyst for this reaction. Broad substrate scope and good functional group tolerance were observed.