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1 article(s) from Nguyen, Nguyen Tran

Experimental and theoretical studies on the synthesis of 1,4,5-trisubstituted pyrrolidine-2,3-diones

Nguyen Tran Nguyen,
Vo Viet Dai,
Nguyen Ngoc Tri,
Luc Van Meervelt,
Nguyen Tien Trung and
Wim Dehaen

Beilstein J. Org. Chem. 2022, 18, 1140–1153, doi:10.3762/bjoc.18.118

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Graphical Abstract

Figure 1: Structure of naturally occurring and synthetic 2-pyrrolidone derivatives.

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Figure 2: Structure of natural compounds containing a 1,5-dihydro-2H-pyrrol-2-one subunit.

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Scheme 1: Synthesis of substituted 4-acetyl-3-hydroxy-3-pyrroline-2-ones 4 via three-component reaction.

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Scheme 2: Proposed mechanistic path for the synthesis of substituted 4-acetyl-3-hydroxy-3-pyrroline-2-ones.

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Scheme 3: Tautomerism of compounds 4a–c in DMSO.

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Figure 3: View of the molecular structure of compound 10aa with atom labeling. Displacement ellipsoids are dr...

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Figure 4: The PES of reaction for the synthesis of 1,4,5-trisubstituted pyrrolidine-2,3-dione 10ab enamine de...

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Scheme 4: Reaction pathways from 4a, 4a’ to 10ab via IS5 in the gase phase.

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Scheme 5: Reaction pathways from 4a to 10ab-v2 via IS3 in the gase phase.

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Figure 5: The PES for the possible pathways (1), (2), (3), and (4) in ethanol solvent.

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Figure 6: The optimized structures of some reactants, intermediates, transition states, and products in the p...

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Published 31 Aug 2022

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