Pyridine-promoted dediazoniation of aryldiazonium tetrafluoroborates: Application to the synthesis of SF5-substituted phenylboronic esters and iodobenzenes [PDF]
Beilstein Journal of Organic Chemistry, 2015 Pyridine promotes dediazoniation of aryldiazonium tetrafluoroborates. The formed aryl radicals were trapped with B2pin2, iodine, or tetrahydrofuran to afford boronic esters, iodobenzenes and benzenes, respectively.
George Iakobson +3 more
doaj +5 more sources
Borylation Directed Borylation of Indoles Using Pyrazabole Electrophiles: A One‐Pot Route to C7‐Borylated‐Indolines [PDF]
Angewandte Chemie, 2022 AbstractPyrazabole (1) is a readily accessible diboron compound that can be transformed into ditopic electrophiles. In 1 (and derivatives), the B⋅⋅⋅B separation is ca. 3 Å, appropriate for one boron centre bonding to N and one to the C7 of indoles and indolines.
Jürgen Pahl +4 more
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Copper-catalyzed dehydrogenative borylation of terminal alkynes with pinacolborane [PDF]
, 2016 LCuOTf complexes [L = cyclic (alkyl)(amino)carbenes (CAACs) or N-heterocyclic carbenes (NHCs)] selectively promote the dehydrogenative borylation of C(sp)-H bonds at room temperature.
Erik A. Romero +2 more
openalex +4 more sources
Borylation–Reduction–Borylation for the Formation of 1,4-Azaborines [PDF]
Organic Letters, 2023 Given the current interest in materials containing 1,4-azaborine units, the development of new routes to these structures is important. Carbonyl directed electrophilic borylation using BBr3 is a facile method for the ortho-borylation of N,N-diaryl-amide derivatives.
Kothavale, Shantaram S. +5 more
openaire +4 more sources
Decarboxylative borylation [PDF]
Science, 2017 Swapping boron acids for carbon acids Carbon-bound boronic acids and their esters are widely used as coupling partners to make carbon-carbon bonds. More recently, these chemicals have garnered pharmaceutical interest in their own right. Li et al.
Chao Li +11 more
openaire +3 more sources
Highly Active CH Bond Borylation of Aromatics With Pyridine as Convenient, Low-Cost Ligand Under Iridium Catalysis. [PDF]
ChemSusChemThe highly atom‐economy iridium‐catalyzed CH bond borylation of aromatics has been achieved utilizing simple and trivial pyridine as the ligand, which is 2–3 orders of magnitude cheaper than the current state‐of‐the‐art ligands, thus significantly reducing both the E‐factor and the carbon footprint associated with tedious and waste‐generating ligand ...
Delahaye V +4 more
europepmc +2 more sources
Nickel boryl complexes and nickel-catalyzed alkyne borylation
Chemical Science, 2023 Nickel bis-boryl complexes cis-[Ni(NHC)2(Bcat)2], cis-[Ni(NHC)2(Bpin)2] and cis-[Ni(NHC)2(Beg)2] are presented and the nickel-catalyzed alkyne borylation is reported.
Lukas Tendera +3 more
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Pyridinium-catalyzed decarboxylative borylation of benzoyl peroxides
Green Synthesis and Catalysis, 2021 A pyridinium salt catalyzed radical borylation of benzoyl peroxides is reported herein. A range of benzoyl peroxides having different electronic properties were well compatible in this borylation reaction, delivering various arylboronates in good yields ...
Shuxian Zhu +4 more
doaj +1 more source
1,2-Boryl Migration Empowers Regiodivergent Synthesis of Borylated Furans [PDF]
Journal of the American Chemical Society, 2014 A regioselective transition metal-catalyzed cycloisomerization reaction of boron-containing alkynyl epoxides toward C2- and C3-borylated furans has been developed. It was found that the copper catalyst as well as the gold catalyst with more basic triflate counterion favor boryl migration toward C3-borylated furans, whereas employment of the cationic ...
Shiroodi, Roohollah Kazem +2 more
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Synthesis of symmetrical and unsymmetrical cyclic diborenes <i>via</i> NHC-directed C-H borylation. [PDF]
Chem SciMihm C +5 more
europepmc +3 more sources