STRUCTURES, SYNTHESES, AND CHEMOTAXONOMIC SIGNIFICANCE OF SOME NEW ACETOPHENONE DERIVATIVES FROM ENCELIA-FARINOSA GRAY

被引：42

作者：

STEELINK, C

MARSHALL, GP

机构：

[1] Department of Chemistry, University of Arizona

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1979年 / 44卷 / 09期

关键词：

D O I：

10.1021/jo01323a015

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The resinous exudate of brittle bush (Encelia farinosa Gray) contains a number of substituted benzofurans and chromenes. All appear to arise from the biogenic prenylation of resacetophenone. The chromene compounds constitute a remarkable sequence of reduction states of encecalin (3) and represent important chemotaxonomic indicators. All the compounds have been characterized on the basis of spectral and chemical methods. A new general synthesis of dimethylchromene derivatives from resorcinol is described. © 1979, American Chemical Society. All rights reserved.

引用

页码：1429 / 1433

页数：5

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