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Related Experiment Videos

Cyclic ether synthesis from diols using trimethyl phosphate.

Shota Asai1, Maho Kato, Yasunari Monguchi

  • 1Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan. sajiki@gifu-pu.ac.jp sawama@gifu-pu.ac.jp.

Chemical Communications (Cambridge, England)
|April 14, 2017
PubMed
Summary
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This study demonstrates a new method for synthesizing cyclic ethers from diols using trimethyl phosphate and sodium hydride. The reaction proceeds efficiently at room temperature, yielding 5-7 membered cyclic ethers with preserved stereochemistry.

Area of Science:

  • Organic Chemistry
  • Synthetic Chemistry

Background:

  • Cyclic ethers are important structural motifs in pharmaceuticals and natural products.
  • Efficient synthesis of cyclic ethers with controlled stereochemistry remains a key challenge in organic synthesis.

Purpose of the Study:

  • To develop a novel and efficient method for the synthesis of cyclic ethers.
  • To investigate the stereochemical outcome of the cyclization reaction.

Main Methods:

  • Intramolecular cyclization of diols using trimethyl phosphate and sodium hydride (NaH).
  • Reactions conducted at room temperature.
  • Analysis of product stereochemistry.

Main Results:

  • Synthesis of 5-7 membered cyclic ethers in good to excellent yields.

Related Experiment Videos

  • Successful transformation of chiral diols into chiral cyclic ethers.
  • Complete retention of stereochemistry at the chiral center.

    • Conclusions:

    • Trimethyl phosphate and NaH provide an effective system for cyclic ether synthesis.
    • The developed method is suitable for preparing chiral cyclic ethers with high stereochemical fidelity.
    • This approach offers a valuable tool for accessing complex cyclic ether structures.