Results 11 to 20 of about 20,491 (284)

Catalytic asymmetric constructions of nitrogen, boron and carbon continuous stereogenic centers [PDF]

open access: yesNature Communications
Precise construction of molecular chirality is a longstanding scientific challenge in synthetic chemistry. Although methods to enantioselectively assemble consecutive carbon stereocenters are abundant, courses to establish enriched continuous ...
Guan Zhang   +6 more
doaj   +2 more sources

Interaction of Laguerre–Gaussian laser pulses with borane targets of different hydrogen–boron ratio [PDF]

open access: yesScientific Reports
We study the interaction of high-intensity Laguerre-Gaussian laser pulses with hydrogen–boron compounds targets using 3D particle-in-cell simulations.
Lars Reichwein   +2 more
doaj   +2 more sources

Mild Generation of Highly Nucleophilic N-Heterocyclic Carbene Boryl Anion From Neutral sp<sup>2</sup>-sp<sup>3</sup> Diboron Reagents and Its Applications in Nucleophilic Borylation. [PDF]

open access: yesAngew Chem Int Ed Engl
A less hindered and highly nucleophilic N‐heterocyclic carbene (NHC) boryl anion is generated at room temperature by reacting sp2–sp3 diboron reagent (NHC)BH2Bpin with KOtBu. This highly reactive anion demonstrates broad reactivity with various electrophiles, including those traditionally considered inert, enabling their efficient borylation.
Sun W, Zhang P, Lyu H.
europepmc   +2 more sources

Synthesis: Molecular Structure, Thermal-Calorimetric and Computational Analyses, of Three New Amine Borane Adducts

open access: yesMolecules, 2023
Cyclopropylamine borane C3H5NH2BH3 (C3AB), 2-ethyl-1-hexylamine borane CH3(CH2)3CH(C2H5)CH2NH2BH3 (C2C6AB) and didodecylamine borane (C12H25)2NHBH3 ((C12)2AB) are three new amine borane adducts (ABAs).
Kevin Turani-I-Belloto   +6 more
doaj   +1 more source

“Activated Borane” – A Porous Borane Cluster Network [PDF]

open access: yes, 2022
The unprecedented co-thermolysis of nido-decaborane (B10H14) and toluene results in a novel porous material (that we have named “Activated Borane”) containing micropores of 1.0 and 1.5 nm in diameter and a specific surface area of 774 m2 g-1 (Ar, 87 K) that is thermally stable up to 1000 oC.
Daniel Bůžek   +9 more
openaire   +1 more source

The Synthesis, Characterization, and Fluxional Behavior of a Hydridorhodatetraborane

open access: yesMolecules, 2023
The octahydridotriborate anion plays a crucial role in the field of polyhedral boron chemistry, facilitating the synthesis of higher boranes and the preparation of diverse transition metal complexes.
Fatou Diaw-Ndiaye   +3 more
doaj   +1 more source

Catalytic Dehydrogenation of Amine‐Boranes using Geminal Phosphino‐Boranes [PDF]

open access: yesZeitschrift für anorganische und allgemeine Chemie, 2020
The reaction of the intramolecular frustrated Lewis pair (FLP) tBu2PCH2BPh2 with the amine‐boranes NH3·BH3 and Me2NH·BH3 leads to the formation of the corresponding FLP‐H2 adducts as well as novel five‐membered heterocycles that result from capturing the in situ formed amino‐borane by a second equivalent of FLP.
Boom, D.H.A.   +6 more
openaire   +3 more sources

Dehydroborylation of Terminal Alkynes Using Lithium Aminoborohydrides

open access: yesMolecules, 2023
Dehydrogenative borylation of terminal alkynes has recently emerged as an atom-economical one-step alternative to traditional alkyne borylation methodologies.
P. Veeraraghavan Ramachandran   +1 more
doaj   +1 more source

Boranes in Organic Chemistry 1. О±-Carbonylalkyl- and ОІ-Oxyalkylboranes in Organic Synthesis

open access: yesEurasian Chemico-Technological Journal, 2002
This review is devoted to the synthesis of a-carbonylalkyl- and ОІ-hydroxy-alkyl boranes and their use in organic synthesis. a-Carbonyl-alkylboranes include several heteroatomic compounds, in particular, [1.2.3]-diazaborinines, uracyl boronic acids, and [
V.M. Dembitsky   +2 more
doaj   +1 more source

Exploring structural and electronic effects in three isomers of tris{bis(trifluoromethyl)phenyl}borane: Towards the combined electrochemical-frustrated Lewis pair activation of H2 [PDF]

open access: yes, 2015
Three structural isomers of tris{bis(trifluoromethyl)phenyl}borane have been studied as the acidic com- ponent of frustrated Lewis pairs. While the 3,5-substituted isomer is already known to heterolytically cleave H2 to generate a bridging-hydride; ortho-
Andrew E. Ashley   +55 more
core   +1 more source

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