[reaction: see text] The cis-dihydroxylation of olefin-containing potassium alkyl- and aryltrifluoroborates proceeds readily in moderate to excellent yields. The resulting diols are efficient coupling partners in Suzuki-Miyaura-type reactions with both alkenyl and aryl bromides.
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http://dx.doi.org/10.1021/ol052549e | DOI Listing |
Inorg Chem
January 2025
Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States.
The formation of a stable alkyl At-C bond occurs during the shipment of At on a 3-octanone-impregnated column and the reactivity of At stripped from columns has been studied. The At could not be recovered from the 3-octanone organic phase using nitric acid or sodium hydroxide, even up to 10 and 15.7 M, respectively.
View Article and Find Full Text PDFOrg Lett
January 2025
Organic Chemistry Department, Science Faculty, Patrice Lumumba Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya strasse, 6, 117198 Moscow, Russia.
Electrolysis of -alkynyl--(formyl)anilides and sodium sulfinates on graphite electrodes delivers biologically sound 3-(sulfonyl)quinol-4-ones with moderate to good yields. The reaction is carried out in an undivided cell in the presence of silver(I) oxide with potassium iodide or sodium tetrafluoroborate as the supporting electrolyte. The reaction tolerates variously substituted anilides as well as aryl and alkyl sulfinates.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada.
Hydrosilanes and Lewis bases are known to promote various reductive defunctionalizations, rearrangements, and silylation reactions, facilitated by enigmatic silicon/Lewis base-derived reactive intermediates. Despite the wide variety of transformations enabled by this reagent combination, no examples of intermolecular C(sp)-C(sp) forming reactions have been reported. In this work, we've identified 1,1,3,3-tetramethyldisiloxane (TMDSO) and KOBu as a unique reagent combination capable of generating benzylic nucleophiles in situ from styrene derivatives, which can subsequently react with alkyl halides to give a new C(sp)-C(sp) linkage via formal hydroalkylation.
View Article and Find Full Text PDFChem Commun (Camb)
December 2024
Department of Chemical and Bimolecular Engineering, Lehigh University, Bethlehem, PA, 18015, USA.
In the development of high-performance lithium-ion batteries (LIBs), the design of polymer binders, particularly through manipulation of side-chain chemistry, plays a pivotal role in optimizing electrode stability, ion transport, and adaptability to the volume changes during cycling. In particular, poly[3-(potassium-4-butanoate)thiophene-2,5-diyl] (P3KBT) increases magnetite and silicon capacity and cycling stability. This work explores the impact of polythiophene alkyl sidechain length on anode characteristics, aiming to enhance performance in LIBs.
View Article and Find Full Text PDFElife
December 2024
Department of Pharmacology, Weill Medical College, Cornell University, New York, United States.
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