Thieme Chemistry
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in Chemical Synthesis
Thieme Chemistry期刊 Synthesis 和 Synlett 最新一期全新上线。欢迎阅读两篇封面论文及本期的其它论文。
Synlett
Issue 06 · Volume 32 · April 2021
封面论文
ANIPE-Cu Catalyst Enables Highly Enantioselective Markovnikov Hydroboration of α-Olefins
Yuan Cai, Shi-Liang Shi
中科院上海有机所
Asymmetric hydroboration of simple and unactivated terminal alkenes (α-olefins), feedstock chemicals derived from the petrochemical industry, has not been efficiently realized for past decades. Using a bulky ANIPE ligand, we achieved a rare example of highly enantioselective copper-catalyzed Markovnikov hydroboration of α-olefins. The chiral secondary alkylboronic ester products were obtained in moderate to good yields and regioselectivities with excellent enantioselectivities.
1 Introduction
2 Conditions Optimization
3 Substrate Scope
4 Application
5 Mechanistic Discussion
6 Conclusions and Future Directions
Synthesis
Issue 07 · Volume 53 · April 2021
封面论文
M. Walther et al.
Azobenzenes are among the most extensively used molecular switches for many different applications. The need to tailor them to the required task often requires further functionalization. Cross-coupling reactions are ideally suited for late-stage modifications. This review provides an overview of recent developments in the modification of azobenzene and its derivatives by cross-coupling reactions.
1 Introduction
2 Azobenzenes as Formally Electrophilic Components
2.1 Palladium Catalysis
2.2 Nickel Catalysis
2.3 Copper Catalysis
2.4 Cobalt Catalysis
3 Azobenzenes as Formally Nucleophilic Components
3.1 Palladium Catalysis
3.2 Copper Catalysis
3.3 C–H Activation Reactions
4 Azobenzenes as Ligands in Catalysts
5 Diazocines
5.1 Synthesis
5.2 Cross-Coupling Reactions
6 Conclusion
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