Direct Conversion of Ethyl Ketone to Alkyl Ketone via Chelation-Assisted Rhodium(I)-Catalyzed Carbon–Carbon Bond Cleavage: Ligands Play an Important Role in the Inhibition of β-Hydrogen Elimination
Sign Up to like & getrecommendations! Published in 2018 at "Organometallics"
DOI: 10.1021/acs.organomet.8b00309
Abstract: Quinolinone derivatives were synthesized by exchanging the ethyl group of 1-(quinolin-8-yl)propan-1-one with substituted styrenes via group-directed carbon–carbon bond cleavage. A series of substituted styrenes were reacted with 1-(quinolin-8-yl)propan-1-one for the production of various substituted 3-phenyl-1-(quinolin-8-yl)propan-1-ones… read more here.
Keywords: carbon carbon; carbon bond; carbon; bond cleavage ... See more keywords
"Cut and Sew" Transformations via Transition-Metal-Catalyzed Carbon-Carbon Bond Activation.
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DOI: 10.1021/acscatal.6b03210
Abstract: The transition metal-catalyzed "cut and sew" transformation has recently emerged as a useful strategy for preparing complex molecular structures. After oxidative addition of a transition metal into a carbon-carbon bond, the resulting two carbon termini… read more here.
Keywords: carbon bond; carbon; transition metal;
Formation of Alkanes by Aerobic Carbon–Carbon Bond Coupling Reactions Catalyzed by a Phosphovanadomolybdic Acid
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DOI: 10.1021/acscatal.7b00461
Abstract: The valorization of alkanes is possible via carbon–carbon coupling reactions. A series of dialkyl cobalt complexes [(RCH2)2CoIII(bpy)2]ClO4 (R = H, Me, Et, and Ph) were reacted with the H5PV2Mo10O40 polyoxometalate as a catalyst, leading to… read more here.
Keywords: carbon; carbon bond; bond coupling; carbon carbon ... See more keywords
Cobalt-Catalyzed Diastereo- and Enantioselective Carbon-Carbon Bond Forming Reactions of Cyclobutenes.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c12475
Abstract: Catalytic enantioselective functionalization of cyclobutenes constitutes a general and modular strategy for construction of enantioenriched complex cyclobutanes bearing multiple stereogenic centers, as chiral four-membered rings are common motifs in biologically active molecules and versatile intermediates… read more here.
Keywords: cobalt catalyzed; carbon bond; carbon; forming reactions ... See more keywords
Catalyst-Directed Guidance of Sulfur-Substituted Enediolates to Stereoselective Carbon-Carbon Bond Formation with Aldehydes.
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DOI: 10.1021/jacs.7b12949
Abstract: A highly chemo-, regio-, and stereoselective glycolate aldol reaction of sulfur-substituted enediolates with aldehydes was developed by employing a l-cyclohexylglycine-derived chiral iminophosphorane as a catalyst. The key for establishing this protocol is the distinct ability… read more here.
Keywords: carbon; carbon bond; substituted enediolates; carbon carbon ... See more keywords
Organometallic and radical intermediates reveal mechanism of diphthamide biosynthesis
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DOI: 10.1126/science.aao6595
Abstract: A quick freeze shows an enzyme's secrets Organic radicals are chemically useful in enzymatic reactions but are often hard to observe, owing to their short lifetimes. Dong et al. used rapid freeze-quench methods to trap… read more here.
Keywords: carbon; carbon bond; sam; diphthamide biosynthesis ... See more keywords