CHEMISTRY OF HETEROCYCLIC-COMPOUNDS .136. 1,3,5-TRI[2,6]PYRIDACYCLOHEXAPHANE-2,4,6-TRIONE KETALS - SYNTHESIS, STRUCTURAL-ANALYSIS, AND COMPLEXATION

被引:15
|
作者
NEWKOME, GR [1 ]
JOO, YJ [1 ]
EVANS, DW [1 ]
FRONCZEK, FR [1 ]
BAKER, GR [1 ]
机构
[1] LOUISIANA STATE UNIV,DEPT CHEM,BATON ROUGE,LA 70803
来源
JOURNAL OF ORGANIC CHEMISTRY | 1990年 / 55卷 / 22期
关键词
D O I
10.1021/jo00309a015
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthesis, molecular distortions, and chemical behavior of l,3,5-tri[2,6]pyridacyclohexaphane-2,4,6-trione ketals are described. The electron-deficient nature of the carbonyl bridges was confirmed by the facile addition of protic solvent to generate a stable hemiketal. The bridging methylene moiety of the carbonyl precursor exhibited novel chemical behavior, which results in a facile dimerization of a radical intermediate. X-ray structural analyses of the ketals and dimers afforded insight into the molecular deviations caused by changing the bond angles of the bridging carbon atoms. © 1990, American Chemical Society. All rights reserved.
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页码:5714 / 5719
页数:6
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