Efficient synthesis of functionalized [7]helicenes

被引：50

作者：

Fox, JM ^{[1
]}

Goldberg, NR ^{[1
]}

Katz, TJ ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1998年 / 63卷 / 21期

关键词：

D O I：

10.1021/jo981380y

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[7]Helicenebisquinones can be made easily and in quantity by reacting the silyl enol ethers of a 9,10-dialkoxy-, or better a 9,10-disiloxy-, 3,6-diacetylphenanthrene, with p-benzoquinone. If an ethyl, enol ether is used in place of the silyl enol ether, the transformation proceeds in much lower yield. The [7]helicenes are efficiently resolved into their enantiomers, and absolute configurations are assigned.

引用

页码：7456 / 7462

页数：7

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