Diverse synthesis of functionalized hydroquinoline derivatives from α-aryl vinylsulfonium salts

Organic Chemistry Frontiers, Год журнала: 2023, Номер 10(17), С. 4256 - 4262

Опубликована: Янв. 1, 2023

We achieved diverse transformations of α-aryl vinylsulfonium salts under mild reaction conditions, affording various 1,2-dihydroquinoline and ring-fused tetrahydroquinoline skeletons in moderate to excellent isolated yields.

Язык: Английский

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Catalyst-free reaction of 2-(4H-benzo[d][1,3]oxazin-4-yl)acrylates: synthesis of 1,2-dihydroquinolines and 2,3-dihydropyrroles

Chemical Communications, Год журнала: 2024, Номер 60(54), С. 6933 - 6936

Опубликована: Янв. 1, 2024

Catalyst-free annulations of 2-(4

Язык: Английский

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Enantioselective Synthesis of 3‐Allylindoles from Indolin‐2‐imines and MBH Carbonates via Nucleophilic Catalysis

ChemistrySelect, Год журнала: 2024, Номер 9(6)

Опубликована: Фев. 7, 2024

Abstract With chiral amine (DHQD) 2 PHAL as nucleophilic catalyst, asymmetric synthesis of enantioenriched 3‐allylindoles was achieved from indolone‐2‐imines and MBH carbonates. Compared with our previous phosphine catalysis, the had exactly opposite effect in terms enantioselectivity. Importantly, we could obtain each enantiomer by adjusting catalyst system.

Язык: Английский

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Organocatalytic Regio- and Enantioselective (3+3)-Annulation of 2-(4H-Benzo[d][1,3]oxazin-4-yl)acrylates with 2,4-Dihydro-3H-pyrazol-3-ones

Tetrahedron Chem, Год журнала: 2023, Номер 8, С. 100048 - 100048

Опубликована: Сен. 7, 2023

A chiral sulfonamide-phosphine catalyzed regio- and enantioselective (3 + 3)-annulation of 2-(4H-benzo[d][1,3]oxazin-4-yl)acrylates with 2,4-dihydro-3H-pyrazol-3-ones has been established, affording a wide range such 1,4,5,6-tetrahydropyrano [2,3-c]pyrazole-containing carboxylates in generally high yields (61–96%) diastereo- enantioselectivities (8:1->20:1 dr, 85–95% ee). Based on several control experiments, reaction mechanism was proposed. Importantly, the work represents first example using benzoxazinyl acrylates as three-atom synthons, which enriches chemistry acrylates.

Язык: Английский

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Organometallic Iridium-Complex-Functionalized Nanographene Catalysts for Low-Temperature Hydrogenation of Carbonyl Derivatives

Inorganic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Окт. 3, 2024

An organometallic iridium (Ir)-complex-functionalized nanographene catalyst

Язык: Английский

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