Results 1 to 10 of about 582,478 (260)

Sustainable radical approaches for cross electrophile coupling to synthesize trifluoromethyl- and allyl-substituted tert-alcohols

open access: yesiScience, 2021
Summary: Trifluoromethylated molecules have gained privileged recognition among the medicinal and pharmaceutical chemists. Sustainable photoredox- and electrochemical processes were employed to facilitate the relatively less explored radical cross ...
Muhammad Awais Ashraf   +4 more
doaj   +1 more source

Homologation of aryl ketones to long-chain ketones and aldehydes via C–C bond cleavage

open access: yesiScience, 2022
Summary: Transition metal-catalyzed C–C bond cleavage is a powerful tool for the reconstruction of a molecular skeleton. We report herein the multi-carbon homologation of aryl ketones to long-chain ketones and aldehydes via ligand-promoted Ar−C(O) bond ...
Xing Wang   +4 more
doaj   +1 more source

Fluorinated tetrapodal anion transporters

open access: yesiScience, 2023
Summary: Synthetic anion transporters show potential in treating life-threatening diseases like cystic fibrosis and cancer. However, with increasingly complex transporter architectures designed to control anion binding and transport, it is important to ...
Alexander M. Gilchrist   +4 more
doaj   +1 more source

Copper-mediated aerobic trifluoromethyltelluration of boronic acids with [Me4N][TeCF3]

open access: yesiScience, 2022
Summary: A copper-mediated trifluoromethyltelluration of arylboronic acids with [Me4N][TeCF3] using air as an environmental friendly oxidant is presented. The reaction proceeded smoothly under mild conditions in the presence of Cu(OTf)2 and bipyridine to
Jing-Yan Dong   +3 more
doaj   +1 more source

Copper-catalyzed oxidative dehydrogenative dearomatization of indole derivatives: A new strategy to construct spirocyclic indolenines

open access: yesiScience, 2022
Summary: A concise copper-catalyzed oxidative dehydrogenative dearomatization of indole derivatives for the direct synthesis of spirocyclic indolenines containing fluorene and indeno[2,1-b]indole groups has been established.
Junli Chao   +6 more
doaj   +1 more source

The serendipitous effect of KF in Ritter reaction: Photo-induced amino-alkylation of alkenes

open access: yesiScience, 2021
Summary: Ritter reaction has been recognized as an elegant strategy to construct the C−N bond. Its key feature is forming the carbocation for nucleophilic attack by nitriles.
Yu-Qing Guan   +6 more
doaj   +1 more source

Unanticipated switch of reactivity of isonitrile via N≡C bond scission: Cascade formation of symmetrical sulfonyl guanidine

open access: yesiScience, 2023
Summary: Unanticipated formation of symmetrical sulfonyl guanidine was observed while treating isonitriles with N,N-dibromoarylsulfonamides in absence of an external amine source.
Debashish Mishra   +2 more
doaj   +1 more source

Catalytic Enantiodivergent Michael Addition by Subtle Adjustment of Achiral Amino Moiety of Dipeptide Phosphines

open access: yesiScience, 2020
Summary: Over the past decades, asymmetric catalysis has been intensely investigated as a powerful tool for the preparation of numerous chiral biologically active compounds.
Huamin Wang   +3 more
doaj   +1 more source

Selective Quadruple C(sp3)-F Functionalization of Polyfluoroalkyl Ketones

open access: yesiScience, 2020
Summary: The significance of organofluorine compounds has inspired the establishment of numerous methods for the functionalization of rather inert C-F bonds.
Ting Xie   +7 more
doaj   +1 more source

Further developments of β,γ-unsaturated α-ketoesters as versatile synthons in asymmetric catalysis

open access: yesiScience, 2022
Summary: β,γ-Unsaturated α-ketoesters prove to be versatile organic synthons participating in diverse catalytic asymmetric transformations with the breathtaking development of organo-catalysis, new catalytic systems including ingenious chiral ligands as ...
Ruixian Deng   +4 more
doaj   +1 more source

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