Novel route to functionalized cyclooctanoids via [5+3] cycloaddition

被引:13
|
作者
Krishna, UM [1 ]
Deodhar, KD [1 ]
Trivedi, GK [1 ]
Mobin, SM [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Natl Single Crystal Xray Diffract Facil, Bombay 400076, Maharashtra, India
来源
JOURNAL OF ORGANIC CHEMISTRY | 2004年 / 69卷 / 03期
关键词
D O I
10.1021/jo0353583
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The self-dimerization of 3-oxidopyrylium leading to stereocontrolled formation of highly functionalized cyclo-octanoids is described. Different functionalities were introduced on the dimer (3) and the stereochemical outcome was determined by single-crystal X-ray analysis. It is noteworthy that the hydrogenation of 3 in ethanol solvent gave the transannulated product 5, whereas the expected dihydro product 4 was obtained when the reaction was run in nonnucleophilic solvents. The mechanistic pathway is discussed.
引用
收藏
页码:967 / 969
页数:3
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