Regioselective oxidative ring-opening of cyclopropenyl carboxylates by visible light photoredox catalysis
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.05.047
Abstract: Abstract Catalyzed by Ir(dFCF 3 ppy) 2 (dtbbpy)PF 6 , several aroyl methylidenemalonates were synthesized in good to excellent yields via visible light photoredox-catalyzed the oxidative ring-opening of cyclopropenyl carboxylate derivatives. The possible mechanism of… read more here.
Keywords: ring opening; oxidative ring; opening cyclopropenyl; light photoredox ... See more keywords
Oxidative Ring Expansion of Cyclobutanols: Access to Functionalized 1,2-Dioxanes.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c00070
Abstract: Cyclobutanols undergo an oxidative ring expansion with Co(acac)2 and triplet oxygen to give 1,2-dioxanols. The formation of an alkoxy radical drives the regioselective cleavage of the ring on the more substituted side before insertion of… read more here.
Keywords: oxidative ring; ring expansion; cyclobutanols access; expansion cyclobutanols ... See more keywords
Enantioselective Oxidative Ring-Opening Reaction of Aziridines with α-Nitroesters Using Cinchona Alkaloid Amide/Nickel(II) Catalysts.
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DOI: 10.1021/acs.orglett.6b03346
Abstract: The enantioselective oxidative ring-opening reaction of aziridines with α-nitroacetates has been developed. Good yields and enantioselectivity were observed for the reaction of various aziridines using a novel cinchona alkaloid amide/NiBr2 catalyst. Both enantiomers of products… read more here.
Keywords: enantioselective oxidative; ring opening; oxidative ring; reaction ... See more keywords
Tandem Oxidative Ring-Opening/Cyclization Reaction in Seconds in Open Atmosphere for the Synthesis of 1-Tetralones in Water-Acetonitrile.
Sign Up to like & getrecommendations! Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.8b03246
Abstract: A mild and practical tandem oxidative ring-opening/cyclization reaction mediated by Ce4+ for the synthesis of 1-tetralones is presented. This rapid transformation was completed within 30 s and conducted in an open reactor at 0 °C… read more here.
Keywords: tandem oxidative; ring opening; oxidative ring; cyclization reaction ... See more keywords
Synthesis of tetrahydro-1H-indolo[2,3-b]pyrrolo[3,2-c]quinolones via intramolecular oxidative ring rearrangement of tetrahydro-β-carbolines and their biological evaluation
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Chemistry"
DOI: 10.1039/c7nj04616b
Abstract: A simple oxidative ring rearrangement of diversely substituted 1-(2-amminoaryl)-tetrahydro-β-carbolines has been developed to generate architecturally interesting tetrahydro-1H-indolo[2,3-b]pyrrolo[3,2-c]quinolones. This unique transformation involves four reaction centers (aniline, C1-carboline and C2/C3 of indole) and utilizes tert-butylhypochlorite as the… read more here.
Keywords: oxidative ring; tetrahydro carbolines; tetrahydro indolo; tetrahydro ... See more keywords