Styrene as 4π-Component in Zn(II)-Catalyzed Intermolecular Diels-Alder/Ene Tandem Reaction

Area of Science:

• Organic Chemistry
• Catalysis
• Reaction Mechanisms

Background:

• Tandem reactions offer efficient synthetic routes by performing multiple transformations in one pot.
• Developing novel catalytic systems for complex organic transformations is crucial in synthetic chemistry.

Purpose of the Study:

• To report a novel Zn-catalyzed intermolecular Diels-Alder/ene tandem reaction.
• To synthesize dihydronaphthalene derivatives.
• To elucidate the reaction mechanism using experimental and computational methods.

Main Methods:

• Zinc-catalyzed tandem reaction.
• Use of styrene as a 4π-component.
• Density Functional Theory (DFT) calculations.
• Experimental mechanistic studies.

Main Results:

• Successful synthesis of various dihydronaphthalene products.
• Moderate to good yields achieved for the target compounds.
• Detailed mechanistic insights obtained through DFT and experiments.

Conclusions:

• The developed Zn-catalyzed tandem reaction provides an effective pathway to dihydronaphthalenes.
• The study offers a deeper understanding of the reaction's intricate mechanism.
• This work expands the toolkit for constructing complex cyclic molecules.