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Updated: Jun 9, 2026
11:45
Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
[Modification of nucleic acids using [3+2] dipolar cycloaddition of azides and alkynes]
Bioorganicheskaia Khimiia
|September 9, 2010
Summary
The azide-alkyne cycloaddition reaction enables the synthesis of DNA oligomer analogues and nucleic acid conjugates. This review summarizes methods for introducing azides and alkynes into DNA.
Area of Science:
- Biochemistry
- Organic Chemistry
- Molecular Biology
Context:
- Nucleic acid modification is crucial for developing novel therapeutic and diagnostic tools.
- The click chemistry reaction, specifically azide-alkyne cycloaddition, offers a versatile platform for bioconjugation.
Purpose:
- To review the application of azide-alkyne cycloaddition in synthesizing nucleic acid conjugates and DNA oligomer analogues.
- To summarize existing chemical and enzymatic methods for incorporating azides and alkynes into DNA structures.
Summary:
- Azide-alkyne cycloaddition is a powerful tool for creating complex nucleic acid structures.
- Various chemical and enzymatic strategies facilitate the introduction of azide and alkyne functionalities into DNA.
- These modified DNA molecules serve as building blocks for advanced applications.
Impact:
- Facilitates the development of novel DNA-based therapeutics, diagnostics, and nanomaterials.
- Provides a comprehensive overview for researchers exploring DNA modification and bioconjugation techniques.
- Advances the field of nucleic acid chemistry and its applications in biotechnology.
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Halogenation is another class of electrophilic addition reactions where a halogen molecule gets added across a π bond. In alkynes, the presence of two π bonds allows for the addition of two equivalents of halogens (bromine or chlorine). The addition of the first halogen molecule forms a trans-dihaloalkene as the major product and the cis isomer as the minor product. Subsequent addition of the second equivalent yields the tetrahalide.
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