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3 article(s) from Yang, Luo

Z-Selective semihydrogenation of alkynes via Ni/Lewis acid synergistic catalyzed system using DMF as hydrogen source and solvent

Lei Kang,
Haifeng Gao and
Luo Yang

Beilstein J. Org. Chem. 2026, 22, 1004–1012, doi:10.3762/bjoc.22.79

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Scheme 1: NiCl₂/Zn(AcO)₂·2H₂O-co-catalyzed Z-selective semihydrogenation of internal alkynes to Z-internal al...

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Scheme 2: NiCl₂/Zn(AcO)₂·2H₂O-co-catalyzed semihydrogenation of terminal alkynes to terminal alkenes.

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Scheme 3: NiCl₂/Zn(AcO)₂·2H₂O-co-catalyzed semihydrogenation of alkylarylacetylene and dialkylacetylene to (Z...

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Scheme 4: Control experiment using DMA as solvent together with exogenous formic acid instead of DMF.

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Scheme 5: Proposed catalytic cycle for the Ni/Lewis acid-catalyzed semihydrogenation of alkynes with DMF.

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Letter

Published 30 Jun 2026

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Recent advances in the tandem annulation of 1,3-enynes to functionalized pyridine and pyrrole derivatives

Yi Liu,
Puying Luo,
Yang Fu,
Tianxin Hao,
Xuan Liu,
Qiuping Ding and
Yiyuan Peng

Beilstein J. Org. Chem. 2021, 17, 2462–2476, doi:10.3762/bjoc.17.163

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Scheme 1: Ag/I₂-mediated electrophilic annulation of 2-en-4-ynyl azides 1.

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Scheme 2: The proposed mechanism of Ag-catalyzed aza-annulation.

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Scheme 3: The proposed mechanism of I₂-mediated aza-annulation.

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Scheme 4: Copper-catalyzed amination of (E)-2-en-4-ynyl azides 1.

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Scheme 5: The proposed mechanism of copper-catalyzed amination.

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Scheme 6: The derivatization of sulfonated aminonicotinates.

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Scheme 7: Copper-catalyzed chalcogenoamination of (E)-2-en-4-ynyl azides 1.

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Scheme 8: The possible mechanism of chalcogenoamination.

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Scheme 9: The derivatization of 5‑selenyl- and 5-sulfenyl-substituted nicotinates.

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Scheme 10: The tandem reaction of nitriles, Reformatsky reagents, and 1,3-enynes.

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Scheme 11: Nickel-catalyzed [4 + 2]-cycloaddition of 3-azetidinones with 1,3-enynes.

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Scheme 12: Electrophilic iodocyclization of 2-nitro-1,3-enynes to pyrroles.

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Scheme 13: Electrophilic halogenation of 2-trifluoromethyl-1,3-enynes to pyrroles.

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Scheme 14: Copper-catalyzed cascade cyclization of 2-nitro-1,3-enynes with amines.

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Scheme 15: Tandem cyclization of 2-nitro-1,3-enynes, Togni reagent II, and amines.

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Scheme 16: Tandem cyclization of 2-nitro-1,3-enynes, TMSN₃, and amines.

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Scheme 17: Cascade cyclization of 6-hydroxyhex-2-en-4-ynals to pyrroles.

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Scheme 18: Au/Ag-catalyzed oxidative aza-annulation of 1,3-enynyl azides.

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Scheme 19: The plausible mechanism of Au/Ag-catalyzed oxidative aza-annulation.

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Scheme 20: Synthesis of 2-tetrazolyl-substituted 3-acylpyrroles from enynals.

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Scheme 21: CuH-catalyzed coupling reaction of 1,3-enynes and nitriles to pyrroles.

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Scheme 22: The mechanism of CuH-catalyzed coupling of 1,3-enynes and nitriles to pyrroles.

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Review

Published 22 Sep 2021

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Functionalization of N-arylglycine esters: electrocatalytic access to C–C bonds mediated by n-Bu₄NI

Mi-Hai Luo,
Yang-Ye Jiang,
Kun Xu,
Yong-Guo Liu,
Bao-Guo Sun and
Cheng-Chu Zeng

Beilstein J. Org. Chem. 2018, 14, 499–505, doi:10.3762/bjoc.14.35

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Scheme 1: Cross dehydrogenative coupling of N-arylglycine esters with C–H nucleophiles.

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Scheme 2: Electrochemical CDC reaction of 2a and various N-arylglycine esters. Reaction conditions for the in...

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Scheme 3: Scope of 2 using n-Bu₄NI as mediator. Reaction conditions:1a (0.5 mmol), 2 (0.6 mmol), n-Bu₄NI (30 ...

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Scheme 4: Scaling up.

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Scheme 5: Control experiments.

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Scheme 6: A plausible mechanism for the electrocatalytic cross dehydrogenative coupling of N-arylglycine este...

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Full Research Paper

Published 22 Feb 2018

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Z-Selective semihydrogenation of alkynes via Ni/Lewis acid synergistic catalyzed system using DMF as hydrogen source and solvent

Recent advances in the tandem annulation of 1,3-enynes to functionalized pyridine and pyrrole derivatives

Functionalization of N-arylglycine esters: electrocatalytic access to C–C bonds mediated by n-Bu4NI

Functionalization of N-arylglycine esters: electrocatalytic access to C–C bonds mediated by n-Bu₄NI