![Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-phosphinetriyltripiperidine]}palladium Under Mild Reaction Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F51444.jpg&w=3840&q=50)
Triflyl-assisted reductive Pd-catalyzed Tsuji-Trost type reaction
Carlos Lázaro-Milla1, M Teresa Quirós, Diego J Cárdenas
1Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, Madrid 28040, Spain.
Chemical Communications (Cambridge, England)
|April 30, 2020
Summary
New cyclobutenes are synthesized using a palladium-catalyzed reaction with water. This study also explores the reaction mechanism using deuterium labeling and computational methods.
Area of Science:
- Organic Chemistry
- Catalysis
- Reaction Mechanism Studies
Background:
- Cyclobutenes are strained cyclic compounds with unique reactivity.
- Palladium-catalyzed reactions are crucial in modern organic synthesis.
- Tsuji-Trost type reactions offer versatile synthetic pathways.
Purpose of the Study:
- To synthesize novel (triflyl)cyclobutenes.
- To investigate the mechanism of a palladium-catalyzed hydrodetriflylation reaction.
- To utilize water and deuterium oxide as hydrogen and deuterium sources.
Main Methods:
- Palladium-catalyzed hydrodetriflylation.
- Synthesis of new (triflyl)cyclobutenes.
- Deuterium labeling studies.
- Density Functional Theory (DFT) calculations.
Main Results:
- Successful preparation of new (triflyl)cyclobutenes.
- Elucidation of the reaction mechanism through isotopic labeling.
- Computational validation of proposed mechanistic pathways.
Conclusions:
- Water and deuterium oxide serve as effective and convenient sources for hydrodetriflylation.
- The reaction proceeds via a Tsuji-Trost type mechanism.
- DFT calculations provide insights into the reaction energetics and transition states.
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