SYNTHESIS OF 5,7-DIHYDRO-6H-NAPHTHO-[1',2'/5,6]PYRANO[3,2-C]QUINOLIN-6-ONES

被引：0

作者：

GUPTA, MCLN ^{[1
]}

DARBARWAR, M ^{[1
]}

机构：

[1] OSMANIA UNIV,DEPT CHEM,HYDERABAD 500007,ANDHRA PRADESH,INDIA

来源：

INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 1994年 / 33卷 / 11期

关键词：

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Acid catalysed condensation of 3-formyl-4-hydroxyquinolin-2(1H)-ones (1) with 2-naphthol (2) furnishes two different 7-substituted 5,7-dihydro-6H-naphtho[1',2':5,6]pyrano[3,2-c]quinolin-6-ones 3 and 4. A mechanistic pathway for the formation of 3 and 4 has been described. The structure of the unexpected product 4 has been supported by an independent synthesis starting from 4-hydroxyuinolin-2(1H)-ones (11) and 2-hydroxy-1-naphthaldehyde (12).

引用

页码：1080 / 1082

页数：3

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