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N,N-Diethanolaminomethyl Polystyrene: An Efficient Solid Support to Immobilize Boronic Acids
1Department of Chemistry, University of Alberta, Edmonton, AB, T6G 2G2 (Canada).
Angewandte Chemie (International Ed. in English)
|December 14, 1999
Summary
N,N-diethanolaminomethyl polystyrene (DEAM-PS) is a novel solid support for efficiently immobilizing boronic acids. This resin enables combinatorial synthesis by derivatizing functionalized boronic acids on a solid phase.
Area of Science:
- Organic Chemistry
- Polymer Chemistry
- Solid-Phase Synthesis
Background:
- Boronic acids are versatile building blocks in organic synthesis.
- Immobilization of boronic acids on solid supports is crucial for combinatorial chemistry.
- Existing methods for boronic acid immobilization are limited.
Purpose of the Study:
- To develop a novel solid support for efficient boronic acid coupling.
- To enable solid-phase combinatorial synthesis using immobilized boronic acids.
Main Methods:
- Synthesis of N,N-diethanolaminomethyl polystyrene (DEAM-PS) resin.
- Coupling of various boronic acids to the DEAM-PS resin.
- Demonstration of functionalized boronic acid immobilization and derivatization.
Main Results:
- DEAM-PS is the first solid support capable of coupling to boronic acids.
- Stable, resin-bound boronic ester ate adducts are formed.
- A wide variety of boronic acids, including functionalized ones, can be efficiently immobilized.
Conclusions:
- DEAM-PS resin provides an efficient method for boronic acid immobilization.
- This approach facilitates solid-phase combinatorial synthesis of diverse boronic acid derivatives.