Gold Catalyzed [3+2] Oxidative Annulation of 1,3‐Enyne with Indole
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DOI: 10.1002/ajoc.202400356
Abstract: An efficient new method has been developed for the synthesis of ketone‐integrated cyclopentene‐fused indoline derivatives with a high regioselectivity through gold‐catalyzed oxidative cyclo‐coupling of 1,3‐enynes with indoles by using 2,6‐dichloropyridine N‐oxide as the terminal oxidant.… read more here.
Keywords: enyne indole; annulation enyne; gold catalyzed; catalyzed oxidative ... See more keywords
Gold(I)‐catalyzed Synthesis of Axially Chiral Indolo[2,3‐c]carbazole Exhibiting Advanced Electrochromic Response
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DOI: 10.1002/ajoc.202400695
Abstract: The Wurster’s Blue skeleton embedded in an axially chiral indolo[2,3‐c]carbazole framework can act as a key chromophore to realize three‐way‐output electrochromic response (UV‐Vis‐near IR absorption, fluorescence, and circular dichroism) upon reversible electrochemical interconversion with the… read more here.
Keywords: indolo carbazole; axially chiral; chiral indolo; gold catalyzed ... See more keywords
Dual Gold(I)‐catalyzed Cyclization of Dialkynyl Pyridinium Salts
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DOI: 10.1002/cctc.201700018
Abstract: Novel dialkynyl pyridines were synthesized and protected as alkyl salts for dual gold(I)‐catalyzed cycloisomerization. Different alkyl groups and counter ions were screened for the salts, with benzyl and hexafluorophosphate providing the best results. The cyclization… read more here.
Keywords: dual gold; cyclization; dialkynyl; gold catalyzed ... See more keywords
Gold‐catalyzed Cycloisomerization Reactions within Guanidinium M12L24 Nanospheres: the Effect of Local Concentrations
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DOI: 10.1002/cctc.201900089
Abstract: Gold‐catalyzed cycloisomerization reactions have been explored using guanidinium functionalized M12L24 nanospheres that strongly encapsulate gold complexes functionalized with a sulfonate group through hydrogen bonds. As the M12L24 nanospheres can bind up to 24 gold complexes,… read more here.
Keywords: gold; m12l24 nanospheres; guanidinium; catalyzed cycloisomerization ... See more keywords
Direct Coumarin Synthesis by Gold Catalyzed Hydroarylation of Alkynoic Acids/Esters
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DOI: 10.1002/cctc.202500465
Abstract: The combination of a gold(I) catalyst with a small amount of ionic liquid as solvent creates a catalytic system able to efficiently promote the direct synthesis of coumarins from phenols and alkynoic acids/esters, through a… read more here.
Keywords: gold catalyzed; alkynoic acids; acids esters; synthesis ... See more keywords
Gold‐Catalyzed Heck and Suzuki‐Type Reactions: Challenges and Recent Advances
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DOI: 10.1002/ejoc.202400793
Abstract: Transition metal‐catalyzed Suzuki and Heck reactions are two of the most common carbon‐carbon bond formation reactions. Gold, unlike other transition metals (Pd, Ni, and Cu), offers unique reactivity profiles, and has emerged as an efficient tool… read more here.
Keywords: chemistry; heck suzuki; catalyzed heck; suzuki ... See more keywords
Synthesis of N,N'‐Bisindoles via Gold‐Catalyzed Formal (4+1) Cycloaddition
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DOI: 10.1002/ejoc.202500193
Abstract: Indole‐based heterocycles are commonly found in natural products and pharmaceuticals, so the synthesis of such heterocycles has become an important research area. In spite of the rapid development of this research area, the synthesis of… read more here.
Keywords: bisindoles via; catalyzed formal; gold catalyzed; synthesis ... See more keywords
Gold(I)‐Catalyzed Allylation and Tandem Allylation–Cycloisomerization of Stannylated Propargyl Acetates with Allylsilanes
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DOI: 10.1002/ejoc.202500253
Abstract: Bicyclo[3.1.0]hex‐2‐enes, synthesized by the cycloisomerization of 1,5‐enynes, serve as key scaffolds in various natural products. Gold(I)‐catalyzed cycloisomerization of 1,5‐enynes is an efficient route to bicyclo[3.1.0]hex‐2‐enes. However, gold(I)‐catalyzed 1,5‐enyne synthesis, particularly with a terminal alkyne, has… read more here.
Keywords: tandem allylation; stannylated propargyl; allylation cycloisomerization; gold catalyzed ... See more keywords
Gold‐catalyzed synthesis of substituted 4‐pentafluorosulfanyl‐1,3‐oxazoles
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DOI: 10.1002/ejoc.202500348
Abstract: We report the first synthesis of pentafluorosulfanylated oxazoles through a gold(I) catalyzed cyclization of SF5‐alkynes and nitriles. We describe 17 examples of 4‐SF5‐oxazoles with NMR yield ranging from 3% to 75%. While the isolation of… read more here.
Keywords: catalyzed synthesis; oxazoles gold; synthesis substituted; substituted pentafluorosulfanyl ... See more keywords
Tunable Gold‐catalyzed Reactions of Propargyl Alcohols and Aryl Nucleophiles
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DOI: 10.1002/open.202200030
Abstract: Abstract Gold‐catalyzed transformations of 1,3‐diarylpropargyl alcohols and various aryl nucleophiles were studied. Selective tunable synthetic methods were developed for 1,1,3‐triarylallenes, diaryl‐indenes and tetraaryl‐allyl target products by C3 nucleophilic substitution and subsequent intra‐ or intermolecular hydroarylation,… read more here.
Keywords: tunable gold; diaryl indenes; aryl nucleophiles; catalyzed reactions ... See more keywords
Gold-Catalyzed Alkyne-Amine Cascade Annulations: A Modern Strategy for Azaheterocycle Construction.
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DOI: 10.1002/tcr.202500015
Abstract: Gold catalysis has experienced remarkable progress over the past two decades, particularly in transformations involving alkynes. While numerous aspects of gold-catalyzed reactions have been extensively reviewed, the specific area of cascade annulations between functionalized amines… read more here.
Keywords: catalyzed alkyne; chemistry; cascade annulations; gold catalyzed ... See more keywords