- Selective reductive annulation reaction for direct synthesis of functionalized quinolines by a cobalt nanocatalyst
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Due to the extensive applications of quinolines, the search for selective construction of such products has long been an attractive subject in scientific community. Herein, by developing a new N-doped ZrO2@C supported cobalt nanomaterial, it has been successfully applied as an efficient catalyst for the reductive annulation of 2-nitroaryl carbonyls with alkynoates and alkynones. The catalytic transformation allows synthesizing a wide array of funcitonalized quinolines with the merits of broad substrate scope, good functional group tolerance, excellent hydrogen transfer selectivity, reusable earth-abundant metal catalyst, and operational simplicity. The developed chemistry paves the ways for further design of hydrogen transfer-mediated coupling reactions by developing heterogeneous catalysts with suitable supports.
- Xie, Rong,Lu, Guang-Peng,Jiang, Huan-Feng,Zhang, Min
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p. 239 - 243
(2020/02/15)
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- Recyclable nano copper oxide catalyzed synthesis of quinoline-2,3- dicarboxylates under ligand free conditions
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An efficient protocol was developed for the recyclable nano CuO powder catalyzed synthesis of quinoline derivatives from acetylenedicarboxylates and 2-aminocarbonyl compounds using acetonitrile as solvent at 40 °C in air. A variety of quinoline derivatives were synthesized in good yields with good chemoselectivity in the presence of a catalytic amount of CuO nano powder under ligand/additive free conditions. The catalyst is air-stable, inexpensive and recyclable up to four cycles. the Partner Organisations 2014.
- Venkanna, Avudoddi,Swapna, Kokkirala,Rao, Pallapothula Venkateswar
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p. 15154 - 15160
(2014/04/17)
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- An improved protocol for the synthesis of quinoline-2,3-dicarboxylates under neutral conditions via biomimetic approach
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A mild and efficient protocol for synthesis of quinoline derivatives in aqueous medium under neutral conditions is described. The reaction proceeded smoothly in H2O catalyzed by supramolecular catalyst β-CD. By this protocol, various quinoline derivatives were synthesized in excellent yields.
- Madhav, Bandaru,Murthy, Sabbavarapu Narayana,Rao, Kakulapati Rama,Durga Nageswar, Yadavalli Venkata
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scheme or table
p. 257 - 260
(2010/05/15)
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