Recent developments in free-radical-promoted C-Si formation via selective C-H/Si-H functionalization
Xiaojie Shang1, Zhong-Quan Liu2
1College of Resources and Environment, Gansu Agricultural University, Lanzhou, Gansu 730070, P. R. China. shangxiaojie@yahoo.cn.
Organic & Biomolecular Chemistry
|July 13, 2016
Summary
Free-radical reactions offer a valuable alternative to transition-metal catalysis for creating carbon-silicon bonds through C-H/Si-H functionalization. This review covers recent advancements and proposed mechanisms in this emerging field.
Area of Science:
- Organic Chemistry
- Organosilicon Chemistry
- Catalysis
Background:
- Transition-metal catalysis is a dominant method for C-Si bond formation.
- Limitations of transition-metal catalysis include cost, toxicity, and substrate scope.
- Free-radical chemistry presents a promising alternative with distinct advantages.
Purpose of the Study:
- To summarize recent developments in free-radical strategies for C-Si bond construction.
- To discuss selective C-H/Si-H functionalization reactions.
- To present and analyze proposed reaction mechanisms.
Main Methods:
- Review of recent literature on free-radical C-Si bond formation.
- Analysis of reaction mechanisms, including radical initiation, propagation, and termination steps.
- Discussion of selectivity in C-H and Si-H functionalization.
Main Results:
- Several novel free-radical reactions for C-Si bond construction have been reported.
- These methods demonstrate high selectivity for C-H/Si-H functionalization.
- Mechanistic studies provide insights into the radical pathways involved.
Conclusions:
- Free-radical strategies are effective and versatile for C-Si bond formation.
- These methods offer a complementary approach to traditional transition-metal catalysis.
- Further research into mechanism and scope is warranted.
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