Results 31 to 40 of about 31,276 (258)

Research Progress of Boron Powder Preparation With Boron Trifluoride as Raw Material

open access: yesHe huaxue yu fangshe huaxue, 2021
The three processes of preparing boron powder were described through boron trifluoride as raw materials using metal thermal reduction, molten salt electrolysis and vapor deposition, respectively.
ZENG Jing;HU Shi-lin;WU Quan-feng;ZHOU Wen-hui;QI Xin
doaj  

Boron-Based (Nano-)Materials: Fundamentals and Applications

open access: yesCrystals, 2016
The boron (Z = 5) element is unique. Boron-based (nano-)materials are equally unique. Accordingly, the present special issue is dedicated to crystalline boron-based (nano-)materials and gathers a series of nine review and research articles dealing with ...
Umit B. Demirci   +2 more
doaj   +1 more source

Transformations of Group 7 Carbonyl Complexes: Possible Intermediates in a Homogeneous Syngas Conversion Scheme [PDF]

open access: yes, 2009
A variety of C−H and C−C bond forming reactions of group 7 carbonyl complexes have been studied as potential steps in a homogeneously catalyzed conversion of syngas to C_(2+) compounds.
Bercaw, John E.   +3 more
core   +2 more sources

Reductions of aldehydes and ketones with a readily available N-heterocyclic carbene borane and acetic acid

open access: yesBeilstein Journal of Organic Chemistry, 2013
Acetic acid promotes the reduction of aldehydes and ketones by the readily available N-heterocyclic carbene borane, 1,3-dimethylimidazol-2-ylidene borane.
Vladimir Lamm   +3 more
doaj   +1 more source

Hydroboration-Oxidation of (±)-(1α,3α,3aβ,6aβ) -1,2,3,3a,4,6a-Hexahydro-1,3-pentalenedimethanol and Its O-Protected Derivatives: Synthesis of New Compounds Useful for Obtaining (iso)Carbacyclin Analogues and X-ray Analysis of the Products

open access: yesMolecules, 2017
Hydroboration-oxidation of 2α,4α-dimethanol-1β,5β-bicyclo[3.3.0]oct-6-en dibenzoate (1) gave alcohols 2 (symmetric) and 3 (unsymmetric) in ~60% yield, together with the monobenzoate diol 4a (37%), resulting from the reduction of the closer benzoate by ...
Constantin I. Tănase   +4 more
doaj   +1 more source

Nanostructured Carbon-Doped BN for CO2 Capture Applications

open access: yesNanomaterials, 2023
Carbon-doped boron nitride (denoted by BN/C) was prepared through the pyrolysis at 1100 °C of a nanostructured mixture of an alkyl amine borane adduct and ammonia borane. The alkyl amine borane adduct acts as a soft template to obtain nanospheres.
Rimeh Mighri   +3 more
doaj   +1 more source

(Phosphanyl)phosphaketenes as building blocks for novel phosphorus heterocycles. [PDF]

open access: yes, 2017
Although BH3 simply coordinates the endocyclic P of (phospholidino)phosphaketene 1Dipp , the bulkier B(C6F5)3 gives rise to a zwitterionic diphosphirenium, which is a novel type of 2π-electron aromatic system as shown by the calculated NICS values. While
Bertrand, Guy   +4 more
core   +2 more sources

The Far Side of Carboranes: Anticancer Active Monocations and Ambiently Stable Dications

open access: yesAngewandte Chemie, EarlyView.
This work describes the synthesis of bench‐stable dicationic carboranes. Their enhanced electrophilicity is documented by opening the clusters with weak nucleophiles or dihydrogen. The surprising stability of positively charged carboranes in water enabled a study of their in vitro antiproliferative activity, which surpassed the effects of doxorubicin ...
Vlastimil Němec   +10 more
wiley   +2 more sources

In Situ Formation of AgCo Stabilized on Graphitic Carbon Nitride and Concomitant Hydrolysis of Ammonia Borane to Hydrogen

open access: yesNanomaterials, 2018
The development of highly-efficient heterogeneous supported catalysts for catalytic hydrolysis of ammonia borane to yield hydrogen is of significant importance considering the versatile usages of hydrogen.
Qi Wang   +8 more
doaj   +1 more source

A frustrated-Lewis-pair approach to catalytic reduction of alkynes to cis-alkenes [PDF]

open access: yes, 2013
Frustrated Lewis pairs are compounds containing both Lewis acidic and Lewis basic moieties, where the formation of an adduct is prevented by steric hindrance.
Chernichenko, K.   +2 more
core   +1 more source

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