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Efficient macrocyclization facilitated by skeleton preorganization.

Rong-Yao Xu1, Xiu Liu1, Guang Sun1

  • 1Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University Tianjin 300387 P. R. China zzy@tjnu.edu.cn hxxydongm@tjnu.edu.cn cjli@tjnu.edu.cn.

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This summary is machine-generated.

Skeleton preorganization enhances macrocycle synthesis. This method efficiently creates pyridylcarbazole and phenylpyridylcarbazole macrocycles via favorable precursor conformations, offering a novel synthetic strategy.

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Area of Science:

  • Organic Chemistry
  • Supramolecular Chemistry

Background:

  • Macrocycle synthesis is crucial for various applications.
  • Achieving efficient macrocyclization often requires specific strategies.

Purpose of the Study:

  • To develop an efficient method for macrocycle synthesis.
  • To investigate the role of skeleton preorganization in macrocyclization.

Main Methods:

  • Synthesis of pyridylcarbazole and phenylpyridylcarbazole macrocycles.
  • Single-crystal structure analysis.
  • Theoretical computation (e.g., DFT).

Main Results:

  • Achieved yields up to 75% for macrocycle synthesis.
  • Demonstrated that skeleton preorganization promotes cyclization-favorable conformations.
  • Identified π⋯π interactions as key drivers for preorganization.

Conclusions:

  • Skeleton preorganization is an effective strategy for efficient macrocycle synthesis.
  • The study provides a new approach for synthesizing complex macrocycles.
  • Understanding noncyclic precursor conformation is vital for macrocyclization.