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The Preparation and Properties of Thermo-reversibly Cross-linked Rubber Via Diels-Alder Chemistry
Published on: August 25, 2016
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Dithioacetal Exchange: A New Reversible Reaction for Dynamic Combinatorial Chemistry
A Gastón Orrillo1, Andrea M Escalante1, Ricardo L E Furlan2,3
1Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Ocampo y Esmeralda, Rosario, 2000), Argentina.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|March 19, 2016
Summary
Mild acidic conditions enable reversible dithioacetal bond formation. This chemistry, combined with disulfide exchange, creates dynamic networks using thiols as key connection points for combinatorial chemistry.
Area of Science:
- Organic Chemistry
- Supramolecular Chemistry
- Chemical Synthesis
Background:
- Dynamic combinatorial chemistry (DCC) enables the synthesis of complex molecules from simpler building blocks.
- Reversible covalent bonds are crucial for creating adaptable and responsive chemical systems.
- Thiol-based chemistries offer versatile platforms for molecular assembly.
Purpose of the Study:
- To investigate the mild acidic conditions for reversible dithioacetal bond formation.
- To explore the integration of dithioacetal chemistry with disulfide exchange for DCC.
- To establish thiols as central nodes in dynamic, temporally separated chemical networks.
Main Methods:
- Acid-catalyzed dithioacetalization reactions.
- Orthogonal disulfide exchange reactions.
- Integration of both chemistries in a single reaction vessel.
Main Results:
- Demonstrated the reversibility of dithioacetal formation under mild acidic conditions.
- Successfully combined dithioacetal chemistry with disulfide exchange.
- Showcased thiols as versatile connecting nodes for dynamic network formation.
Conclusions:
- Reversible dithioacetal formation provides a new tool for dynamic combinatorial chemistry.
- The combination with disulfide exchange allows for the construction of complex, adaptable molecular systems.
- This approach offers a powerful strategy for creating temporally separated molecular networks.
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