What does this research mean for the field?

The NHC-catalyzed [3 + 3] annulation of enals with pyrazol-5-amines proceeds via an eight-step mechanism that determines its regio- and stereoselectivity. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to explore the mechanisms and selectivity in the reaction of enals with pyrazol-5-amines catalyzed by NHC.

May 16, 2026Physical Chemistry Chemical Physics0 citations

A Computational Study of NHC-Catalyzed 3 + 3 Annulation of Enals with Pyrazol-5-amines: Mechanism, Regio-and Stereoselectivities

YLYan Li CZChao Zhao ZZZhiqiang Zhang

Key Points

The study aims to explore the mechanisms and selectivity in the reaction of enals with pyrazol-5-amines catalyzed by NHC.
Theoretical investigation of reaction mechanisms across eight catalytic steps.
Analysis of regio- and stereoselectivity patterns in the reaction.
Examination of chiral NHC effects on catalytic performance.
Identified eight reaction steps in the catalytic process.
Demonstrated distinct regio- and stereoselectivity under different conditions.
Provided insights into mechanistic pathways influencing selectivity.

Abstract

The reaction between enals and pyrazol-5-amines catalyzed by a chiral NHC was theoretically investigated to understand the mechanisms and origins of regio-and stereoselectivity. The catalytic reaction proceeds via eight steps:...

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