2169-37-1Relevant articles and documents
Electrochemical Palladium-Catalyzed Intramolecular C—H Amination of 2-Amidobiaryls for Synthesis of Carbazoles
Gao, Xinlong,Lei, Aiwen,Wang, Pan,Wang, Qingqing,Zhang, Heng,Zhang, Xiaojing
supporting information, p. 143 - 148 (2020/12/18)
The synthesis of carbazoles based on the electrochemical Pd-catalyzed intramolecular C—H amination of 2-amidobiaryls through oxidative cross coupling has been achieved under mild reaction conditions. The reaction can be carried out in undivided cell without the addition of external chemical oxidant. Besides good functional group compatibility, the desired carbazoles can be scaled up and modified easily. Compared with previous methods, this protocol affords a simple and sustainable avenue for the construction of carbazoles.
Silver-copper co-catalyzed cascade intramolecular cyclization/desulfinamide/dehydrogenation: One-pot synthesis of substituted carbazoles
Huang, Yuanqiong,Guo, Zhonglin,Song, Hongjian,Liu, Yuxiu,Wang, Qingmin
, p. 7143 - 7146 (2018/07/05)
Herein, a silver and copper co-catalyzed cascade intramolecular cyclization/desulfinamide/dehydrogenation reaction for the synthesis of substituted carbazoles is reported. This reaction, which involved formation of new C-C and C-N bonds as well as C-N bond cleavage, afforded diverse carbazoles in high yields and showed good functional group tolerance.
Reductive C(sp2)-N elimination from isolated Pd(IV) amido aryl complexes prepared using H2O2 as oxidant
Abada, Elikplim,Zavalij, Peter Y.,Vedernikov, Andrei N.
supporting information, p. 643 - 646 (2017/05/16)
Di-2-pyridyl ketone (dpk)-supported amidoarylpallada(Il)cycles derived from various 2-(N-R-amino)biphenyls (R = H, Me, CF3CO, MeSOj, CF3SO2) react with hydrogen peroxide in MeOH, THF, MeCN or AcOH to form the corresponding C-N coupled products, N-R-substituted carbazoles, in 82-98% yield. For R = MeS02 and CF3SO2, the corresponding reaction intermediates, amidoaryl Pd(IV) complexes were isolated and characterized by single crystal X-ray diffraction and/or NMR spectroscopy. For the first time, the C(sp2)-N reductive elimination from isolated amidoaryl Pd(lV) complexes has been studied in detail.
