One-pot preparation of pyranoquinolinones by ytterbium(III) trifluoromethanesulfonate-catalyzed reactions:: Efficient synthesis of flindersine, N-methylflindersine, and zanthosimuline natural products

被引:39
作者
Lee, YR [1 ]
Kweon, HI
Koh, WS
Min, KR
Kim, YS
Lee, SH
机构
[1] Yeungnam Univ, Sch Chem Engn & Technol, Kyongsan 712749, South Korea
[2] Chungbuk Natl Univ, Coll Pharm, Cheongju 361763, South Korea
[3] Yeungnam Univ, Coll Pharm, Kyongsan 712749, South Korea
来源
SYNTHESIS-STUTTGART | 2001年 / 12期
关键词
pyranoquinolinone alkaloids; Yb(OTf)(3); flindersine; N-methylflindersine; zanthosimuline;
D O I
10.1055/s-2001-17516
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An efficient synthesis of pyranoquinolinones is achieved by ytterbium(III) triflate-catalyzed reaction of 4-hydroxy-2-quinolones with a variety of alpha,beta -unsaturated aldehydes in moderate yields. This new method has been applied to the synthesis of pyranoquinolinone alkaloids.
引用
收藏
页码:1851 / 1855
页数:5
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