Preparation of block copolymers via metal-free visible-light-induced ATRP for the detection of lead ions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.45863
Abstract: Polyacrylamide-b-poly(methacrylic acid) was prepared on the surface of Au electrode (Au/PAM/PMAA) for Pb2+ ion electrochemical sensing via metal-free visible-light-induced atom transfer radical polymerization, which was very simple, convenient, and environmentally friendly. Au/PAM/PMAA was carefully examined… read more here.
Keywords: detection; via metal; free visible; pam pmaa ... See more keywords
Photocatalyst‐free, Visible Light Driven, Gold Promoted Suzuki Synthesis of (Hetero)biaryls
Sign Up to like & getrecommendations! Published in 2017 at "ChemCatChem"
DOI: 10.1002/cctc.201701436
Abstract: A visible‐light driven Suzuki cross‐coupling reaction was performed with colored and bench‐stable arylazosulfones in the presence of Ph3PAuCl (5 mol %) as the catalyst. The absence of a photocatalyst, along with the use of commercially available and… read more here.
Keywords: driven gold; visible light; free visible; gold promoted ... See more keywords
Metal-free visible-light-mediated aerobic oxidation of silanes to silanols
Sign Up to like & getrecommendations! Published in 2018 at "Science China Chemistry"
DOI: 10.1007/s11426-018-9289-9
Abstract: Oxidation of silanes into silanols using water/air has attracted considerable attention. The known methods with no exception required a metal catalyst. Herein we report the first metal-free method: 2 mol% Rose Bengal as the catalyst,… read more here.
Keywords: oxidation silanes; visible light; silanes silanols; free visible ... See more keywords
Photocatalyst-free visible light driven synthesis of (E)-vinyl sulfones from cinnamic acids and arylazo sulfones
Sign Up to like & getrecommendations! Published in 2020 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2020.151898
Abstract: Abstract A photocatalyst-free visible light mediated decarboxylative sulfono functionalization protocol has been explored for the synthesis of (E)-vinyl sulfones from cinnamic acids and bench-stable arylazo sulfones. The latter have been utilized as sulfonyl radical precursors… read more here.
Keywords: synthesis vinyl; visible light; vinyl; free visible ... See more keywords
Photocatalyst- and Transition-Metal-Free Visible-Light-Promoted Intramolecular C(sp2)-S Formation.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c00235
Abstract: A photocatalyst- and transition-metal-free visible-light-induced cyclization of ortho-halothiobenzanilides has been developed. Upon irradiation with visible light, substrates undergo dehalogenative cyclization to 2-aryl benzothiazoles with high efficiency and selectivity. This photocyclization exhibits a high tolerance to… read more here.
Keywords: transition metal; photocatalyst transition; visible light; free visible ... See more keywords
Metal-free visible light photoredox enables generation of carbyne equivalents via phosphonium ylide C–H activation† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c8sc04195d
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Science"
DOI: 10.1039/c8sc04195d
Abstract: Phosphonium ylides have shown their synthetic usefulness in important carbon–carbon bond formation processes. Our new strategy employs phosphonium ylides as novel carbyne equivalents and features a new approach for constructing carbon–carbon bonds from alkenes. read more here.
Keywords: carbon; phosphonium; free visible; carbyne equivalents ... See more keywords
Catalyst-free visible-light-initiated oxidative coupling of aryldiazo sulfones with thiols leading to unsymmetrical sulfoxides in air
Sign Up to like & getrecommendations! Published in 2019 at "Green Chemistry"
DOI: 10.1039/c9gc00222g
Abstract: A facile visible-light-driven method has been developed to construct sulfoxides from aryldiazo sulfones and thiols in air under photocatalyst-free conditions. read more here.
Keywords: aryldiazo sulfones; free visible; air; visible light ... See more keywords
Photocatalyst-free visible light promoted E → Z isomerization of alkenes
Sign Up to like & getrecommendations! Published in 2020 at "Green Chemistry"
DOI: 10.1039/c9gc04303a
Abstract: A simple and green method of visible light driven photocatalytic E to Z isomerization of alkenes has been developed. A variety of (Z)-alkenes can be prepared in the presence of visible light, without any additional… read more here.
Keywords: isomerization alkenes; photocatalyst free; visible light; free visible ... See more keywords
Transition metal-free, visible-light-mediated construction of α,β-diamino esters via decarboxylative radical addition at room temperature
Sign Up to like & getrecommendations! Published in 2019 at "Organic Chemistry Frontiers"
DOI: 10.1039/c9qo00407f
Abstract: A metal-free photoredox catalyzed decarboxylative radical coupling of free-carboxylic acids and glyoxylic oximes was developed to synthesize α,β-diamino acids. read more here.
Keywords: transition metal; decarboxylative radical; diamino; free visible ... See more keywords
Photocatalyst-free visible-light triggered amination of benzo[c][1,2,5]thiadiazole: direct C-N bond formation from C(sp2)-H bond.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d2cc05811a
Abstract: The photoredox amination of arene protocols mostly comprises photocatalyst-mediated transformations. Herein, we presented the photocatalyst-free, visible-light promoted, direct conversion of C(sp2)-H to C(sp2)-N method. Multipurpose benzothiadiazoles are used as model synthons and secondary amines as… read more here.
Keywords: photocatalyst free; free visible; visible light; amination ... See more keywords