Viscosity-control led, product-selective rearrangement of the cyclopentane-1,3-diyl radical cation derived from an annelated housane by electron transfer: A case of Curtin-Hammett behavior

被引:7
作者
Adam, W
Librera, C
Trofimov, AV
机构
[1] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany
[2] Russian Acad Sci, Inst Biochem Phys, Moscow 117977, Russia
关键词
D O I
10.1021/ja026057y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The fractional-power viscosity dependence of the product ratio [2]/[3] similar to eta(a3 a2) manifests the different free-volume requirements for the methylene (k(3) similar to eta(a3)) versus methyl (k(2) similar to eta(a2)) migrations. The syn/anti-conformational changes (k(1), k(-1)) in the radical cation 1(.+) proceed faster than the structural transformations (k(2), k(3)), which constitutes the first Curtin-Hammett case in radical-cation rearrangements.
引用
收藏
页码:11936 / 11939
页数:4
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