Pd(II)-Catalyzed Synthesis of Furo[2,3-b]pyridines from β-Ketodinitriles and Alkynes via Cyclization and N-H/C Annulation.
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DOI: 10.1021/acs.orglett.2c01472
Abstract: A Pd(II)-catalyzed synthesis of furopyridines has been developed from β-ketodinitriles and alkynes via an unusual N-H/C annulation. The participation of both the nitrile groups and the concurrent construction of furan and pyridine rings through the… read more here.
Keywords: synthesis furo; alkynes via; annulation; ketodinitriles alkynes ... See more keywords
Rhodium(III)-Catalyzed Oxidative Annulation of 2,2'-Bipyridine N-Oxides with Alkynes via Dual C-H Bond Activation.
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DOI: 10.1021/acs.orglett.8b01434
Abstract: Rh(III)-catalyzed switchable annulation of 2,2'-bipyridine N-oxides with internal alkynes via dual C-H bond activation has been developed. Tuning the reaction conditions enabled the reaction pathway to be switched between rollover and nonrollover annulation, delivering 5,6-disubstituted-1,10-phenanthrolines… read more here.
Keywords: annulation bipyridine; annulation; via dual; bipyridine oxides ... See more keywords
Phosphine-Catalyzed Intermolecular Acylfluorination of Alkynes via a P(V) Intermediate.
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DOI: 10.1021/jacs.0c08928
Abstract: We report the phosphine-catalyzed intermolecular carbofluorination of alkynes using acyl fluorides as fluorinating reagents. This reaction promises to be a useful method for the synthesis of highly substituted monofluoroalkene derivatives since acyl fluorides can be… read more here.
Keywords: phosphine catalyzed; catalyzed intermolecular; intermolecular acylfluorination; alkynes via ... See more keywords
Alkyne Hydroheteroarylation: Enantioselective Coupling of Indoles and Alkynes via Rh-Hydride Catalysis.
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DOI: 10.1021/jacs.7b05893
Abstract: We report an enantioselective coupling between alkynes and indoles. A Rh-hydride catalyst isomerizes alkynes to generate a metal-allyl species that can be trapped with both aromatic and heteroaromatic nucleophiles. read more here.
Keywords: enantioselective coupling; indoles alkynes; hydroheteroarylation enantioselective; coupling indoles ... See more keywords
Oxy-sulfonylation of terminal alkynes via C–S coupling enabled by copper photoredox catalysis
Sign Up to like & getrecommendations! Published in 2021 at "Green Chemistry"
DOI: 10.1039/d1gc00736j
Abstract: We present a highly efficient and eco-friendly synthesis of β-keto sulfones using simple copper(i) iodide as a catalyst and molecular oxygen as an oxidant under low energy visible light at room temperature. read more here.
Keywords: oxy sulfonylation; copper; terminal alkynes; via coupling ... See more keywords