A Four-Component Cascade C-H Functionalization/Cyclization/Nucleophilic Substitution Reaction To Construct α-Functionalized Tetrahydroquinolines by the Strategy of in Situ Directing Group Formation.
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DOI: 10.1021/acs.orglett.7b00226
Abstract: A four-component cascade C-H functionalization/cyclization/nucleophilic substitution reactions of anilines, carboxylic anhydrides, propenol, and alkohols have been developed by a strategy of in situ directing group formation, affording an efficient and convenient synthesis of α-alkoxyl tetrahydroquinolines… read more here.
Keywords: functionalization cyclization; four component; component cascade; cyclization nucleophilic ... See more keywords
Directed C3-Alkoxymethylation of Indole via Three-Component Cascade Reaction.
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DOI: 10.1021/acs.orglett.9b00357
Abstract: An efficient and regioselective C3-alkoxymethylation of indoles has been developed with aldehydes and alcohols via three-component cascade reaction under transition-metal free conditions. This method allows for rapid access to a variety of C3-alkoxymethylaed free (N-H)… read more here.
Keywords: via three; cascade reaction; three component; component cascade ... See more keywords
Visible-Light-Mediated Three-Component Cascade Sulfonylative Annulation
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DOI: 10.1021/acsomega.2c02302
Abstract: Visible-light-promoted cascade radical cyclization for the synthesis of sulfonylated benzimidazo/indolo[2,1-a]iso-quinolin-6(5H)-ones has been reported. The reaction provides transition-metal-free and expeditious access to sulfonylated polyaromatics. The use of sodium metabisulfite as a SO2 surrogate and the rapid… read more here.
Keywords: mediated three; component cascade; three component; visible light ... See more keywords
Catalyst-free multi-component cascade C–H-functionalization in water using molecular oxygen: an approach to 1,3-oxazines
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DOI: 10.1039/c7gc01494e
Abstract: Herein, catalyst-free 3-component reactions of naphthols, aldehydes, and tetrahydroisoquinolines to synthesize 1,3-oxazines is reported. The reaction is performed in H2O in the presence of O2 as the sole oxidant at 100 °C, which proceeds through… read more here.
Keywords: component; component cascade; multi component; free multi ... See more keywords
A palladium-catalyzed three-component cascade S-transfer reaction in ionic liquids
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DOI: 10.1039/c9gc01718f
Abstract: A palladium-catalyzed three component cascade S-transfer reaction for the assembly of functionalized 4-sulfenylisoxazoles in ionic liquids was described. read more here.
Keywords: transfer reaction; component cascade; three component; palladium catalyzed ... See more keywords
Base-Controlled Copper-Catalyzed Multi-Component Cascade Reactions of Cyanamides, Diaryliodonium Triflates and Propargylamine for Rapid Assembly of Polysubstituted 2-aminoimidazoles and 2-iminoimidazoles
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DOI: 10.1039/d3nj01373a
Abstract: Copper-catalyzed three-component and four-component cascade reactions of cyanamides, dirayliodonium triflates, and propargylamine were established for rapid construction of polysubstituted 2-aminoimidazoles and 2-iminoimidazoles using K2CO3 and pyridine as base, respectively. Each... read more here.
Keywords: component; cascade reactions; reactions cyanamides; component cascade ... See more keywords