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2 article(s) from Cheng, Maosheng

Pathway economy in cyclization of 1,n-enynes

Hezhen Han,
Wenjie Mao,
Bin Lin,
Maosheng Cheng,
Lu Yang and
Yongxiang Liu

Beilstein J. Org. Chem. 2025, 21, 2260–2282, doi:10.3762/bjoc.21.173

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Graphical Abstract

Scheme 1: Economical synthesis and pathway economy.

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Scheme 2: Au(I)-catalyzed cascade cyclization paths of 1,5-enynes.

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Scheme 3: Au(I)-catalyzed cyclization paths of 1,7-enynes.

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Scheme 4: I₂/TBHP-mediated radical cycloisomerization paths of 1,n-enyne.

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Scheme 5: Au(I)-catalyzed cycloisomerization paths of 3-allyloxy-1,6-diynes.

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Scheme 6: Pd(II)-catalyzed cycloisomerization paths of 2-alkynylbenzoate-cyclohexadienone.

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Scheme 7: Stereoselective cyclization of 1,5-enynes.

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Scheme 8: Substituent-controlled cycloisomerization of propargyl vinyl ethers.

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Scheme 9: Au(I)-catalyzed pathway-controlled domino cyclization of 1,2-diphenylethynes.

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Scheme 10: Au(I)-catalyzed tandem cyclo-isomerization of tryptamine-N-ethynylpropiolamide.

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Scheme 11: Au(I)-catalyzed tunable cyclization of 1,6-cyclohexenylalkyne.

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Scheme 12: Substituent-controlled 7-exo- and 8-endo-dig-selective cyclization of 2-propargylaminobiphenyl deri...

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Scheme 13: BiCl₃-catalyzed cycloisomerization of tryptamine-ynamide derivatives.

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Scheme 14: Au(I)-mediated substituent-controlled cycloisomerization of 1,6-enynes.

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Scheme 15: Ligand-controlled regioselective cyclization of 1,6-enynes.

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Scheme 16: Ligand-dependent cycloisomerization of 1,7-enyne esters.

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Scheme 17: Ligand-controlled cycloisomerization of 1,5-enynes.

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Scheme 18: Ligand-controlled cyclization strategy of alkynylamide tethered alkylidenecyclopropanes.

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Scheme 19: Ag(I)-mediated pathway-controlled cycloisomerization of tryptamine-ynamides.

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Scheme 20: Gold-catalyzed cycloisomerization of indoles with alkynes.

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Scheme 21: Catalyst-dependent cycloisomerization of dienol silyl ethers.

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Scheme 22: Cycloisomerization of aromatic enynes governed by catalyst.

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Scheme 23: Catalyst-dependent 1,2-migration in cyclization of 1-(indol-2-yl)-3-alkyn-1-ols.

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Scheme 24: Gold-catalyzed cycloisomerization of N-propargyl-N-vinyl sulfonamides.

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Scheme 25: Gold(I)-mediated enantioselective cycloisomerizations of ortho-(alkynyl)styrenes.

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Scheme 26: Catalyst-controlled intramolecular cyclization of 1,7-enynes.

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Scheme 27: Brønsted acid-catalyzed cycloisomerizations of tryptamine ynamides.

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Scheme 28: Catalyst-controlled cyclization of indolyl homopropargyl amides.

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Scheme 29: Angle strain-dominated 6-endo-trig cyclization of propargyl vinyl ethers.

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Scheme 30: Angle strain-controlled cycloisomerization of alkyn-tethered indoles.

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Scheme 31: Geometrical isomeration-dependent cycloisomerization of 1,3-dien-5-ynes.

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Scheme 32: Temperature-controlled cyclization of 1,7-enynes.

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Scheme 33: Cycloisomerizations of n-(o-ethynylaryl)acrylamides through temperature modulation.

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Scheme 34: Temperature-controlled boracyclization of biphenyl-embedded 1,3,5-trien-7-ynes.

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Album

Review

Published 27 Oct 2025

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Formal total synthesis of macarpine via a Au(I)-catalyzed 6-endo-dig cycloisomerization strategy

Jiayue Fu,
Bingbing Li,
Zefang Zhou,
Maosheng Cheng,
Lu Yang and
Yongxiang Liu

Beilstein J. Org. Chem. 2022, 18, 1589–1595, doi:10.3762/bjoc.18.169

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Graphical Abstract

Scheme 1: Classification of benzo[c]phenanthridine alkaloids.

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Scheme 2: Representative synthetic strategies for macarpine (1).

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Scheme 3: Retrosynthetic analysis of marcarpine precursor 12 for a partial synthesis.

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Scheme 4: Syntheses of precursors 5 and 8.

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Scheme 5: Synthesis of enol silyl ether 10.

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Scheme 6: Formal total synthesis of macarpine (1).

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Album

Supp Info

Letter

Published 23 Nov 2022

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