38147-72-7Relevant articles and documents
Nickel-catalyzed oxidative C-H/N-H annulation of N-heteroaromatic compounds with alkynes
Obata, Atsushi,Sasagawa, Akane,Yamazaki, Ken,Ano, Yusuke,Chatani, Naoto
, p. 3242 - 3248 (2019/03/21)
The reaction of N-heteroaromatic compounds, such as 2-aryl-pyrrole, benzimidazole, imidazole, indole, and pyrazole derivatives, with alkynes in the presence of a catalytic amount of a nickel complex results in C-H/N-H oxidative annulation. The reaction shows a high functional group compatibility. While both Ni(0) and Ni(ii) complexes show a high catalytic activity, Ni(0) is proposed as a key catalytic species in the main catalytic cycle. In the case of the Ni(ii) system, the presence of a catalytic amount of a strong base, such as KOBut, is required for the reaction to proceed. In sharp contrast, a base is not required in the case of the Ni(0) system. The proposed mechanism is supported by DFT studies.
Metal complexes
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Page/Page column 100; 101, (2016/10/10)
The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these metal complexes.
Fluorescent naphthyl- and anthrylazoles from the catalytic coupling of phenylazoles with internal alkynes through the cleavage of multiple C-H bonds
Umeda, Nobuyoshi,Tsurugi, Hayato,Satoh, Tetsuya,Miura, Masahiro
supporting information; experimental part, p. 4019 - 4022 (2009/02/08)
(Chemical Equation Presented) Bright light rings: The direct coupling of phenylazoles with an internal alkyne proceeds efficiently in the presence of a rhodium catalyst and a copper oxidant to selectively give either the 1-naphthyl- or 1-anthrylazole derivatives through the cleavage of multiple C-H bonds (see scheme; 1-naphthylazole derivative not shown). Some of the products exhibit intense fluorescence in the solid state.