LITHIUM-ION-CATALYZED EPOXIDATION BY TRIPLET DIOXYGEN - AN ABINITIO STUDY

被引:13
作者
HOFMANN, H [1 ]
CLARK, T [1 ]
机构
[1] UNIV ERLANGEN NURNBERG, INST ORGAN CHEM, HENKESTR 42, W-8520 ERLANGEN, GERMANY
关键词
D O I
10.1002/anie.199006481
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Epoxidation is exothermic with −19.3 kcalmol−1 [Eq. (b)] instead of endothermic with +27.7 kcal mol−1 [Eq. (a)] when carried out in the presence of Li⊕. This emerged from demanding ab‐initio calculations for this model system. Since Li⊕‐catalysis is largely a result of an electrostatic effect, other metal ions should also be able to act as catalysts for epoxidation. (Formula Presented.) Copyright © 1990 by VCH Verlagsgesellschaft mbH, Germany
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页码:648 / 650
页数:3
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