Amide‐phosphonium Salt Catalyzed Enantioselective Vinylogous Mannich Addition of Coumarins to Isatin Imines
Sign Up to like & getrecommendations! Published in 2019 at "ChemCatChem"
DOI: 10.1002/cctc.201901677
Abstract: An asymmetric vinylogous Mannich reaction between 3‐cyano‐4‐methylcoumarins and N‐Boc isatin imines catalysed by amide phosphonium salt is described. This method allows the formation of intriguing adducts bearing both 3‐aminooxindole and coumarin moieties in excellent yields… read more here.
Keywords: isatin imines; amide phosphonium; salt catalyzed; vinylogous mannich ... See more keywords
Plasma‐Assisted Immobilization of a Phosphonium Salt and Its Use as a Catalyst in the Valorization of CO2
Sign Up to like & getrecommendations! Published in 2020 at "Chemsuschem"
DOI: 10.1002/cssc.201903384
Abstract: Abstract The first plasma‐assisted immobilization of an organocatalyst, namely a bifunctional phosphonium salt in an amorphous hydrogenated carbon coating, is reported. This method makes the requirement for prefunctionalized supports redundant. The immobilized catalyst was characterized… read more here.
Keywords: plasma assisted; assisted immobilization; spectroscopy; immobilized catalyst ... See more keywords
Enhanced antibacterial activity of magnetic biochar conjugated quaternary phosphonium salt
Sign Up to like & getrecommendations! Published in 2020 at "Carbon"
DOI: 10.1016/j.carbon.2020.03.010
Abstract: Abstract Microbial contamination in water remains a global issue in threatening human health. Although current disinfection methods can effectively control microbial contamination, the formation of harmful disinfection byproducts is increasingly questioned. Towards this goal, a… read more here.
Keywords: quaternary phosphonium; magnetic biochar; phosphonium salt;
Nucleophilic monofluoroalkylation with fluorinated phosphonium salt toward carbonyl and imine compounds
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DOI: 10.1016/j.jfluchem.2016.11.012
Abstract: Abstract A fluorinated substituent on the positive phosphorus in phosphonium salt [Ph3P+CF(Me)CO2Et Br−] was found to be able to act as a nucleophile to realize monofluoroalkylation of aldehydes, ketones and imines. read more here.
Keywords: monofluoroalkylation fluorinated; nucleophilic monofluoroalkylation; phosphonium salt; phosphonium ... See more keywords
Efficient radiosynthesis of a [ 18 F]-phosphonium salt containing closo -carborane
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DOI: 10.1016/j.tetlet.2017.10.009
Abstract: • An efficient synthesis of an 18 F-labelled phosphonium salt containing closo -carborane is described. read more here.
Keywords: closo carborane; phosphonium salt; containing closo; salt containing ... See more keywords
Palladium-Catalyzed Sonogashira Coupling of a Heterocyclic Phosphonium Salt with a Terminal Alkyne.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c01800
Abstract: An efficient Sonogashira coupling of a heterocyclic phosphonium salt with a terminal alkyne via C-P bond cleavage was developed. The reactions proceeded smoothly in the presence of palladium catalyst, copper(I) iodide, and N,N-diisopropylethylamine (DIPEA) in… read more here.
Keywords: coupling heterocyclic; phosphonium salt; heterocyclic phosphonium; sonogashira coupling ... See more keywords