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- W2742781330 endingPage "9616" @default.
- W2742781330 startingPage "9609" @default.
- W2742781330 abstract "High surface area macroporous chalcogenide aerogels (chalcogels) MAu2GeS4 (M = Co, Ni) were prepared from K2Au2GeS4 precursor and Co(OAc)2 or NiCl2 by one-pot sol–gel metathesis reactions in aqueous media. The MAu2GeS4-chalcogels were screened for catalytic intramolecular hydroamination of 4-pentyn-1-amine substrate at different temperatures. 87% and 58% conversion was achieved at 100 °C, using CoAu2GeS4- and NiAu2GeS4-chalcogels respectively, and the reaction kinetics follows the first order. It was established that the catalytic performance of the aerogels is associated with the M2+ centers present in the structure. Intermolecular hydroamination of aniline with 1-R-4-ethynylbenzene (R = −H, −OCH3, −Br, −F) was carried out at 100 °C using CoAu2GeS4-chalcogel catalyst, due to its promising catalytic performance. The CoAu2GeS4-chalcogel regioselectively converted the pair of substrates to respective Markovnikov products, (E)-1-(4-R-phenyl)-N-phenylethan-1-imine, with 38% to 60% conversion." @default.
- W2742781330 created "2017-08-17" @default.
- W2742781330 creator A5015654220 @default.
- W2742781330 creator A5046522347 @default.
- W2742781330 creator A5087186152 @default.
- W2742781330 date "2017-08-08" @default.
- W2742781330 modified "2023-10-12" @default.
- W2742781330 title "MAu<sub>2</sub>GeS<sub>4</sub>-Chalcogel (M = Co, Ni): Heterogeneous Intra- and Intermolecular Hydroamination Catalysts" @default.
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- W2742781330 doi "https://doi.org/10.1021/acs.inorgchem.7b01099" @default.
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- W2742781330 hasPublicationYear "2017" @default.
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