Synthesis of pyrrolo-[2,1-j]quinolone framework via intramolecular electrophilic ipso-cyclization

被引:21
|
作者
Low-Beinart, Lila [1 ]
Sun, Xiaohan [1 ]
Sidman, Eli [1 ]
Kesharwani, Tanay [1 ]
机构
[1] Bard Coll, Chem Program, Annandale On Hudson, NY 12504 USA
基金
美国国家科学基金会;
关键词
Electrophilic cyclization; Iodocyclization; Intramolecular ipso-cyclization; 1H-Pyrrolo-[2,1-j]quinolone; ASCIDIAN CLAVELINA-CYLINDRICA; DIELS-ALDER REACTION; SELECTIVE SYNTHESIS; TERMINAL ACETYLENES; LEPADIFORMIS MULLER; ALKALOIDS; (-)-LEPADIFORMINE; HALOCYCLIZATION; LIBRARY; ALKYNES;
D O I
10.1016/j.tetlet.2012.12.014
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The challenging pyrrolo-12,1-j]quinolone core structure has been synthesized from N-(alkynoyl)-6-methoxytetrahydroquinoline in good yields using electrophilic cyclization as the key step. These reactions require simple starting materials and mild reaction conditions. In addition, we have demonstrated that the iodine moiety, which could be easily introduced in the final step, is very useful for further functionalization by employing various palladium-catalyzed cross-coupling reactions. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1344 / 1347
页数:4
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