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Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds
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Ring Opening Reactions through C-O Bond Cleavage Uniquely Adding Chemical Functionality to Boron Subphthalocyanine
Catherine Bonnier1, Timothy P Bender2,3,4
1Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St., Toronto M5S 3E5, ON, Canada.
Molecules (Basel, Switzerland)
|October 13, 2015
Summary
Bromo-boron subphthalocyanine reacts with solvents like THF, leading to ring opening and the formation of novel bromoalkoxy-BsubPc derivatives. These compounds offer potential for further functionalization while retaining key optical properties.
Area of Science:
- Organic Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Subphthalocyanines (SubPcs) are valuable macrocyclic compounds with unique photophysical properties.
- Functionalization of SubPcs is crucial for tailoring their applications in various fields.
- Reactions involving the cleavage of cyclic ethers and their incorporation into organic frameworks are of significant interest.
Purpose of the Study:
- To investigate the reaction between bromo-boron subphthalocyanine (Br-BsubPc) and cyclic ether solvents.
- To synthesize novel bromoalkoxy-BsubPc derivatives through solvent ring-opening.
- To characterize the resulting compounds and assess their potential for further chemical modification.
Main Methods:
- Reaction of Br-BsubPc with tetrahydrofuran (THF), 1,4-dioxane, and γ-butyrolactone under heating.
- Isolation and purification of the synthesized bromoalkoxy-BsubPc derivatives.
- Spectroscopic characterization to confirm the structure and properties of the new compounds.
Main Results:
- An unexpected ring-opening reaction of THF, 1,4-dioxane, and γ-butyrolactone was observed with Br-BsubPc.
- Novel bromoalkoxy-BsubPc derivatives were successfully synthesized.
- The obtained derivatives possess remaining alkyl-bromides, enabling further functionalization.
- The characteristic strong visible absorption and fluorescence quantum yields of SubPcs were maintained.
Conclusions:
- The reaction provides a new route to functionalized bromoalkoxy-BsubPc derivatives.
- These derivatives serve as versatile building blocks for advanced materials.
- The retained optical properties suggest their utility in optoelectronic applications.
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