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Related Concept Videos

Cycloaddition Reactions: MO Requirements for Photochemical Activation01:12

Cycloaddition Reactions: MO Requirements for Photochemical Activation

2.2K
Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
2.2K
Cycloaddition Reactions: MO Requirements for Thermal Activation01:16

Cycloaddition Reactions: MO Requirements for Thermal Activation

3.6K
Thermal cycloadditions are reactions where the source of activation energy needed to initiate the reaction is provided in the form of heat. A typical example of a thermally-allowed cycloaddition is the Diels–Alder reaction, which is a [4 + 2] cycloaddition. In contrast, a [2 + 2] cycloaddition is thermally forbidden.
3.6K

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Constructing Cyclic Peptides Using an On-Tether Sulfonium Center
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Macrocyclic peptide construction through C-H activation strategy

Kai Chen1, Bing-Feng Shi2

  • 1Department of Chemistry, Zhejiang University, Hangzhou 310027, China; Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.

Science Bulletin
|January 20, 2023
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Summary

No abstract available in PubMed .

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