FURAN-DERIVATIVES .12. SYNTHESIS OF 2,5-DIOXACYCLOHEPTA[JKL]-AS-INDACENES

被引:2
作者
HORAGUCHI, T [1 ]
MIYAZAWA, K [1 ]
HASEGAWA, E [1 ]
SHIMIZU, T [1 ]
SUZUKI, T [1 ]
TANEMURA, K [1 ]
机构
[1] NIPPON DENT UNIV,SCH DENT NIIGATA,HAMAURA,NIIGATA 951,JAPAN
关键词
D O I
10.1002/jhet.5570270422
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A variety of 2,5‐dioxacyclohepta[jkl]‐as‐indacenes 5, 7–14 were synthesized as a new heterocycle by the treatment of diethyl (5,9‐dioxobenzocyclohepten‐1,4‐diyloxy)diacetates 4a‐e with potassium hydroxide or sodium hydride in dioxane. The mechanism of furan‐ring formation from 4a‐e was discussed. Copyright © 1990 Journal of Heterocyclic Chemistry
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页码:941 / 948
页数:8
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