Synthesis of Diaryl‐ and Dialkynylphosphinates From Ubiquitous PV Sources via a Redox‐Neutral Approach
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DOI: 10.1002/advs.202509922
Abstract: Organophosphinic acids, R2P(O)(OH), and their derivatives are versatile compounds with applications in catalysis, material chemistry, biomolecular bridging, metal extraction, and flame retardancy. Current synthetic methods primarily rely on white phosphorus (P4) as a precursor, which… read more here.
Keywords: dialkynylphosphinates ubiquitous; redox neutral; synthesis diaryl; diaryl dialkynylphosphinates ... See more keywords
Rh(III)-Catalyzed Redox-Neutral [4+2] Annulation for Direct Assembly of 3-Acyl Isoquinolin-1(2H)-ones as Potent Antitumor Agents.
Sign Up to like & getrecommendations! Published in 2020 at "ChemPlusChem"
DOI: 10.1002/cplu.201900616
Abstract: By virtue of an efficient rhodium(III)-catalyzed redox-neutral C-H activation/ring-opening of a strained ring/[4+2] annulation cascade of N-methoxybenzamides with propargyl cycloalkanols, diverse 3-acyl isoquinolin-1(2H)-ones were directly obtained in good yields and with excellent functional group compatibility.… read more here.
Keywords: annulation; iii catalyzed; redox neutral; isoquinolin ones ... See more keywords
Redox-Neutral Transformations of Carbon Dioxide Using Coordinatively Unsaturated Late Metal Silyl Amide Complexes.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c03453
Abstract: Two-coordinate silylamido complexes of nickel and copper rapidly react with CO2 to selectively form a new cyanate ligand along with hexamethyldisiloxane byproducts. Mechanistic insight into these reactions was obtained from the synthesis of proposed intermediates,… read more here.
Keywords: carbon dioxide; dioxide using; neutral transformations; redox neutral ... See more keywords
Redox Neutral Radical-Relay Cobalt Catalysis toward C-H Fluorination and Amination.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c01072
Abstract: A redox neutral radical-relay cobalt-catalyzed intramolecular C-H fluorination of N-fluoroamides featuring the in situ formed cobalt fluorides as the latent radical fluorinating agents is reported. Moreover, the reactivity of such a cobalt catalysis could be… read more here.
Keywords: cobalt; fluorination; redox neutral; neutral radical ... See more keywords
Redox-Neutral P(O)-N Coupling between P(O)-H Compounds and Azides via Dual Copper and Photoredox Catalysis.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c02207
Abstract: We report a redox-neutral P(O)-N coupling reaction of P(O)-H compounds with azides via photoredox and copper catalysis, providing new access to useful phosphinamides, phosphonamides, and phosphoramides. This transformation tolerates a wide range of nucleophilic functionalities… read more here.
Keywords: neutral coupling; azides via; copper; compounds azides ... See more keywords
Redox-Neutral Generation of Iminyl Radicals by N-Heterocyclic Carbene Catalysis: Rapid Access to Phenanthridines from Vinyl Azides.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02118
Abstract: An N-heterocyclic carbene-catalyzed oxidant-, metal- and light-free iminyl radical generation pathway stemming from the reaction of vinyl azide and α-bromo ester is uncovered. This newly developed methodology is successfully applied to the redox-neutral construction of… read more here.
Keywords: redox neutral; generation iminyl; neutral generation; heterocyclic carbene ... See more keywords
A Metal-Free and Redox-Neutral Benzylic C-O Cyclization for Succinct Access of Helical Chromenes.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02728
Abstract: A redox-neutral benzylic C-O cyclization under beneficial transition-metal-free conditions is reported. Key to the success of this process is the utilization of the Tf anion as the leaving group for achieving the redox-neutral transformation. This… read more here.
Keywords: metal free; helical chromenes; benzylic cyclization; cyclization ... See more keywords
Redox-Neutral Ruthenium(II)-Catalyzed Enol-Directed Arene C-H Alkylation with Maleimides.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c03858
Abstract: An enol-assisted regioselective arene C-H alkylation with maleimides is developed under redox-neutral ruthenium(II) catalysis, offering a wide variety of valuable 3-aryl succinimides including amino acid embedded frameworks in good to excellent yields. The products were… read more here.
Keywords: redox neutral; alkylation maleimides; neutral ruthenium; arene alkylation ... See more keywords
Redox-Neutral 1,4-Dicarbonfunctionalization of 1,3-Butadiene by Merging Photoredox and Nickel Catalysis.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c04060
Abstract: The diverse functionalization of 1,3-butadiene provides wide applicability toward the synthesis of abundant and useful allylic compounds. Here, we describe a three-component and redox-neutral assembly of readily available C═X compounds, 1,3-butadiene, and various nucleophiles by… read more here.
Keywords: butadiene; nickel catalysis; merging photoredox; photoredox nickel ... See more keywords
Photoredox-Catalyzed Redox-Neutral Decarboxylative C-H Acylations of Coumarins with α-Keto Acid.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00632
Abstract: A novel and green photocatalytic strategy for the synthesis of C-4-acylated coumarins with α-keto acids and 3-nitrocoumarin has been developed. This operationally simple protocol works under mild reaction conditions, providing convenient access to 4-acyl coumarin… read more here.
Keywords: coumarins keto; decarboxylative acylations; neutral decarboxylative; redox neutral ... See more keywords
Redox-Neutral Synthesis of Sulfilimines through the S-Alkylation of Sulfenamides.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01060
Abstract: In this work, we developed a metal-free and redox-neutral strategy for the selective S-alkylation of sulfenamides under basic conditions to yield sulfilimines. The key step involves the resonance between bivalent nitrogen-centered anions, generated after deprotonation… read more here.
Keywords: neutral synthesis; synthesis sulfilimines; alkylation sulfenamides; alkylation ... See more keywords