期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 81, 期 14, 页码 6007-6017出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.6b01052
关键词
-
资金
- NSF [CHE-1465142]
- IBM
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1465142] Funding Source: National Science Foundation
Direct evidence for the formation of alkoxy radicals is reported in radical cascades using traceless directing groups. Despite the possibility of hydrogen abstraction in the fragmenting step, followed by loss of R-OH, beta-scission is preferred for the formation of alkoxy radicals. For the first time, the C-O radical was intermolecularly trapped using a silyl enol ether. Various C-X fragmenting groups were explored as possible traceless directing groups for the preparation of extended polyaromatics. Computational evidence shows that a combination of aromatization, steric and stereoelectronic effects assists the fragmentation to alkoxy radicals. Additionally, a new through-space interaction was discovered between O and Sn in the fragmentation as a specific transition state stabilizing effect.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据