Silicon-Tethered Strategies for C-H Functionalization Reactions
Marvin Parasram1, Vladimir Gevorgyan1
1Department of Chemistry, University of Illinois at Chicago , 845 West Taylor Street, Chicago, Illinois 60607, United States.
Accounts of Chemical Research
|August 4, 2017
Summary
Researchers developed novel silicon tethers for efficient C-H bond functionalization, offering easily installable and removable directing groups for complex molecule synthesis. This advance simplifies organic synthesis and late-stage functionalization strategies.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
- Catalysis
Background:
- Selective C-H bond functionalization is crucial in organic synthesis.
- Existing directing groups (DGs) can be cumbersome and difficult to remove.
- Silicon tethers offer advantages in ease of handling, stability, and removability.
Purpose of the Study:
- To develop easily installable and removable/modifiable silicon tethers for C-H functionalization.
- To expand the utility of directed functionalization in synthesizing complex molecules.
- To present advances in silicon-auxiliary-mediated C-H functionalization reactions.
Main Methods:
- Development of four types of silicon tethers for C-H functionalization.
- Application of silicon tethers for C(sp2)-H and C(sp3)-H bond functionalization.
- Exploration of silicon tether functionalization and modification strategies.
Main Results:
- Demonstrated Si-tether strategies for C-H functionalization, including C-C, C-X, C-O, and C-Si bond formation.
- Categorized Si-tethers into four types based on their reactivity and application.
- Showcased the versatility of silicon tethers in delivering functional groups and directing reactions.
Conclusions:
- Silicon tethers represent a valuable tool for directed C-H functionalization.
- These methods facilitate the synthesis and late-stage functionalization of complex molecules.
- Challenges include the need for noble metals and stoichiometric use of silicon auxiliaries.
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