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2 article(s) from Li, Hui

Electrochemical cyclization of alkynes to construct five-membered nitrogen-heterocyclic rings

Lifen Peng,
Ting Wang,
Zhiwen Yuan,
Bin Li,
Zilong Tang,
Xirong Liu,
Hui Li,
Guofang Jiang,
Chunling Zeng,
Henry N. C. Wong and
Xiao-Shui Peng

Beilstein J. Org. Chem. 2025, 21, 2173–2201, doi:10.3762/bjoc.21.166

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Figure 1: Natural products and functional molecules possessing five-membered rings.

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Scheme 1: Electrochemical intramolecular coupling of ureas to form indoles.

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Scheme 2: Electrochemical dehydrogenative annulation of alkynes with anilines.

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Scheme 3: Electrochemical annulations of o-arylalkynylanilines.

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Scheme 4: Electrochemical cyclization of 2-ethynylanilines.

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Scheme 5: Electrochemical selenocyclization of diselenides and 2-ethynylanilines.

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Scheme 6: Electrochemical cascade approach towards 3-selenylindoles.

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Scheme 7: Electrochemical C–H indolization.

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Scheme 8: Electrochemical annulation of benzamides and terminal alkynes.

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Scheme 9: Electrochemical synthesis of isoindolinone by 5-exo-dig aza-cyclization.

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Scheme 10: Electrochemical reductive cascade annulation of o-alkynylbenzamide.

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Scheme 11: Electrochemical intramolecular 1,2-amino oxygenation of alkyne.

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Scheme 12: Electrochemical multicomponent reaction of nitrile, (thio)xanthene, terminal alkyne and water.

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Scheme 13: Electrochemical aminotrifluoromethylation/cyclization of alkynes.

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Scheme 14: Electrochemical cyclization of o-nitrophenylacetylene.

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Scheme 15: Electrochemical annulation of alkynyl enaminones.

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Scheme 16: Electrochemical annulation of alkyne and enamide.

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Scheme 17: Electrochemical tandem Michael addition/azidation/cyclization.

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Scheme 18: Electrochemical [3 + 2] cyclization of heteroarylamines.

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Scheme 19: Electrochemical CuAAC to access 1,2,3-triazole.

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Review

Published 16 Oct 2025

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Novel synthesis of pseudopeptides bearing a difluoromethyl group by Ugi reaction and desulfanylation

Jingjing Wu,
Hui Li and
Song Cao

Beilstein J. Org. Chem. 2011, 7, 1070–1074, doi:10.3762/bjoc.7.123

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Figure 1: Two examples of bioactive pseudopeptides bearing a CF₂H group.

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Scheme 1: Synthesis of difluoromethyl-containing pseudopeptides (4a–m) by Ugi reaction and desulfanylation.

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Scheme 2: The Ugi reaction of aniline, benzaldehyde, (isocyanomethyl)benzene with acetic acid, difluoroacetic...

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Scheme 3: Synthesis of 2,2-difluoro-2-(phenylthio)acetic acid (2).

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Full Research Paper

Published 08 Aug 2011

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