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Ytterbium-catalyzed formal [4+2] cycloaddition: Synthesis of chalcogen-quinolines 3-unsubstituted
被引:3
作者:
de Oliveira, Isadora M.
[1
]
Darbem, Mariana P.
[2
]
Esteves, C. Henrique A.
[2
]
Pimenta, Daniel C.
[3
]
Zukerman-Schpector, Julio
[4
]
Stefani, Helio A.
[2
]
Manarin, Flavia
[5
]
机构:
[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Sao Paulo, SP, Brazil
[2] Univ Sao Paulo, Fac Ciencias Farmacaut, Dept Farm, Sao Paulo, Brazil
[3] Inst Butantan, Sao Paulo, SP, Brazil
[4] Univ Fed Sao Carlos, Dept Quim, Sao Carlos, SP, Brazil
[5] Univ Estadual Oeste Parana, CECE, Toledo, PR, Brazil
基金:
巴西圣保罗研究基金会;
关键词:
Quinolines;
Ytterbium;
Poly-substituted quinolones;
Selenium;
Internal alkynes;
POLYSUBSTITUTED QUINOLINES;
SUBSTITUTED QUINOLINES;
TANDEM SYNTHESIS;
5+1 ANNULATION;
DERIVATIVES;
SELENIUM;
ALKYNES;
CHEMISTRY;
EFFICIENT;
D O I:
10.1016/j.tetlet.2018.09.022
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A regioselective ytterbium-catalyzed annulation reaction between ethylglyoxalate, anilines and silylalkynes bearing selenyl- and telluryl-moieties for the formation of poly-substituted quinolones is described. A series of examples formed under mild conditions are presented, including a scaled-up reaction and a study on catalyst recyclability. (C) 2018 Elsevier Ltd. All rights reserved.
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页码:3907 / 3911
页数:5
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