COMPETITIVE CYCLOADDITION AND ENE-TYPE REACTIONS . MECHANISM OF REACTION OF BICYCLO[2.1.0]PENTANE WITH ELECTRON-DEFICIENT ACETYLENES

被引:33
作者
GASSMAN, PG
MANSFIEL.KT
机构
[1] Department of Chemistry, Ohio State University, Columbus
关键词
D O I
10.1021/ja01008a021
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Rate studies of the addition of electron-deficient acetylene to bicyclo[2.1.0]pentane have provided data which are most consistent with the formation of a diradical intermediate. In particular, rate measurements in benzene, ethyl acetate, and acetonitrile showed a negligible solvent effect, the total change in relative rates being less than a factor of 2. More important, the product ratio was independent of solvent polarity. These results are discussed in relation to the classical cycloaddition and ene-type reactions. © 1968, American Chemical Society. All rights reserved.
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页码:1524 / &
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