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Showing results for jan boryl
Search for Jan Boril instead (1 results)
Redox-Active Heteroatom-Functionalized Polyacetylenes.
Luppi BT, Muralidharan AV, Ostermann N, Cheong IT, Ferguson MJ, Siewert I, Rivard E. Luppi BT, et al. Angew Chem Int Ed Engl. 2022 Jan 21;61(4):e202114586. doi: 10.1002/anie.202114586. Epub 2021 Dec 15. Angew Chem Int Ed Engl. 2022. PMID: 34826183
Here, we employ a ring-opening metathesis polymerization (ROMP) protocol to prepare functionalized polyacetylenes (fPAs) bearing: (1) electron-deficient boryl (-BR(2) ) and phosphoryl (-P(O)R(2) ) side chains; (2) electron-donating amino (-NR(2) ) groups, and (3) ring-fuse …
Here, we employ a ring-opening metathesis polymerization (ROMP) protocol to prepare functionalized polyacetylenes (fPAs) bearing: (1) electr …
Acyclic Boryl Complexes of Copper(I).
Charman RSC, Hobson JA, Jackson RA, Mahon MF, Neale SE, Liptrot DJ. Charman RSC, et al. Chemistry. 2024 Jan 2;30(1):e202302704. doi: 10.1002/chem.202302704. Epub 2023 Nov 13. Chemistry. 2024. PMID: 37818674
Reaction of (6-Dipp)CuOtBu (6-Dipp=C{NDippCH(2) }(2) CH(2) , Dipp=2,6-iPr(2) C(6) H(3) ) with B(2) (OMe)(4) provided access to (6-Dipp)CuB(OMe)(2) via sigma-bond metathesis. (6-Dipp)CuB(OMe)(2) was characterised by NMR spectroscopy and X-ray crystallography and shown to be a mono …
Reaction of (6-Dipp)CuOtBu (6-Dipp=C{NDippCH(2) }(2) CH(2) , Dipp=2,6-iPr(2) C(6) H(3) ) with B(2) (OMe)(4) provided access to (6-Dipp)CuB(O …
Neutral Boryl Radicals in Mixed-Valent B((III)) Br-B((II)) Adducts.
Liu TT, Chen J, Chen XL, Ma L, Guan BT, Lin Z, Shi ZJ. Liu TT, et al. Chemistry. 2023 Jan 2;29(1):e202202634. doi: 10.1002/chem.202202634. Epub 2022 Nov 14. Chemistry. 2023. PMID: 36217568
The general strategies to stabilize a boryl radical involve single electron delocalization by pi-system and the steric hinderance from bulky groups. Herein, a new class of boryl radicals is reported, with intramolecular mixed-valent B((III)) Br-B((II)) adducts ligat …
The general strategies to stabilize a boryl radical involve single electron delocalization by pi-system and the steric hinderance fro …
Nickel boryl complexes and nickel-catalyzed alkyne borylation.
Tendera L, Fantuzzi F, Marder TB, Radius U. Tendera L, et al. Chem Sci. 2023 Jan 27;14(8):2215-2228. doi: 10.1039/d2sc04690c. eCollection 2023 Feb 22. Chem Sci. 2023. PMID: 36845942 Free PMC article.
In contrast to the known platinum-catalyzed diboration, the nickel system follows a different mechanistic pathway, which not only provides the 1,2-borylation product in excellent yields, but also provides an efficient approach to other products such as C-C coupled boryl …
In contrast to the known platinum-catalyzed diboration, the nickel system follows a different mechanistic pathway, which not only provides t …
Boron-Wittig olefination with gem-bis(boryl)alkanes.
Cuenca AB , Fernández E . Cuenca AB , et al. Chem Soc Rev. 2021 Jan 7;50(1):72-86. doi: 10.1039/d0cs00953a. Epub 2020 Dec 15. Chem Soc Rev. 2021. PMID: 33319887
The condensation of easy manageable lithium alpha-bis(boryl)carbanions with carbonyl derivatives, the so-called boron-Wittig reaction, allows for the straightforward and often stereoselective formation of synthetically highly versatile metalloid-substituted alkenes, which …
The condensation of easy manageable lithium alpha-bis(boryl)carbanions with carbonyl derivatives, the so-called boron-Wittig reaction …
Crystalline Boragermenes.
Rao B, Kinjo R. Rao B, et al. Angew Chem Int Ed Engl. 2020 Feb 17;59(8):3147-3150. doi: 10.1002/anie.201914644. Epub 2020 Jan 16. Angew Chem Int Ed Engl. 2020. PMID: 31821675
Boragermene 3 featuring a double bond between the Ge and dicoordinate B atoms has been synthesized for the first time by reacting the cyclic (alkyl)(boryl)germylene-PMe(3) adduct 1 with Cl(2) BN(SiMe(3) )(2) followed by reductive dehalogenation with KC(8) . ...
Boragermene 3 featuring a double bond between the Ge and dicoordinate B atoms has been synthesized for the first time by reacting the cyclic …
Iron-Catalyzed, Directed Benzylic Borylation.
Lee H, He T, Cook SP. Lee H, et al. Org Lett. 2023 Jan 13;25(1):1-4. doi: 10.1021/acs.orglett.2c02864. Epub 2022 Dec 22. Org Lett. 2023. PMID: 36550075
Herein, we describe an iron-catalyzed benzylic C-H borylation reaction. The reaction targets primary and secondary C(sp(3))-H bonds to deliver high-value boronic esters under mild conditions with short (7-8 min) reaction times. ...
Herein, we describe an iron-catalyzed benzylic C-H borylation reaction. The reaction targets primary and secondary C(sp(3))-H bonds t …
Disproportionation and Ligand Lability in Low Oxidation State Boryl-Tin Chemistry.
Zheng X, Crumpton AE, Protchenko AV, Heilmann A, Ellwanger MA, Aldridge S. Zheng X, et al. Chemistry. 2023 Feb 16;29(10):e202203395. doi: 10.1002/chem.202203395. Epub 2023 Jan 4. Chemistry. 2023. PMID: 36399407 Free PMC article.
The formation of the mono-carbene stabilized distannyne and donor-free distannide systems (boryl)SnSn(IPrMe)(boryl) (2) and K(2) [Sn(2) (boryl)(2) ] (3), using Mg(I) and K reducing agents mirrors related germanium chemistry. ...A viable mechanism for this rea …
The formation of the mono-carbene stabilized distannyne and donor-free distannide systems (boryl)SnSn(IPrMe)(boryl) (2) and K( …
Lewis Base-Boryl Radicals Enabled Borylation Reactions and Selective Activation of Carbon-Heteroatom Bonds.
Peng TY, Zhang FL, Wang YF. Peng TY, et al. Acc Chem Res. 2023 Jan 17;56(2):169-186. doi: 10.1021/acs.accounts.2c00752. Epub 2022 Dec 26. Acc Chem Res. 2023. PMID: 36571794
In the 1980s, Roberts and co-workers found that the coordination of a Lewis base (amines or phosphines) with the boron center could form 4-center-7-electron boryl radicals (Lewis base-boryl radicals, LBRs) that are found to be more stable. ...For this purpose, we pr …
In the 1980s, Roberts and co-workers found that the coordination of a Lewis base (amines or phosphines) with the boron center could form 4-c …
405 results