Results 41 to 50 of about 47,782 (256)

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

The effect of the amido substituent on polymer molecular weight in propene homopolymerisation by titanium cyclopentadienyl-amide catalysts [PDF]

open access: yes, 2000
In the homopolymerisation of propene by the cyclopentadienyl-amide titanium catalyst systems [η5,η1-C5H4(CH2)2NR]TiCl2/MAO and [η5,η1-C5H4(CH2)2NR]Ti(CH2Ph)2/B(C6F5)3 (R = tBu, iPr, Me), the catalyst with the smallest substituent (Me) on the amido moiety
Hessen, Bart,   +2 more
core   +1 more source

Spontaneous dehydrocoupling in peri-substituted phosphine-borane adducts [PDF]

open access: yes, 2016
This work was financially supported by the EPSRC and COST action CM1302 SIPs.Bis(borane) adducts Acenap(PiPr2·BH3)(PRH·BH3) (Acenap = acenaphthene-5,6-diyl; 4a, R = Ph; 4b, R = ferrocenyl, Fc; 4c, R = H) were synthesised by the reaction of excess H3B ...
Cordes, David Bradford   +6 more
core   +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

Hydrazine Borane and Hydrazinidoboranes as Chemical Hydrogen Storage Materials

open access: yesEnergies, 2015
Hydrazine borane N2H4BH3 and alkali derivatives (i.e., lithium, sodium and potassium hydrazinidoboranes MN2H3BH3 with M = Li, Na and K) have been considered as potential chemical hydrogen storage materials.
Romain Moury, Umit B. Demirci
doaj   +1 more source

Chiral Aminoalcohols and Squaric Acid Amides as Ligands for Asymmetric Borane Reduction of Ketones: Insight to In Situ Formed Catalytic System by DOSY and Multinuclear NMR Experiments

open access: yesMolecules, 2021
A series of squaric acid amides (synthesized in 66–99% isolated yields) and a set of chiral aminoalcohols were comparatively studied as ligands in a model reaction of reduction of α-chloroacetophenone with BH3•SMe2.
Yana Nikolova   +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

Synthesis and Structural Characterization of Amidine, Amide, Urea and Isocyanate Derivatives of the Amino-closo-dodecaborate Anion [B12H11NH3]

open access: yesMolecules, 2018
The synthesis and structural characterization of new derivatives of [B12H12]2− is of fundamental interest and is expected to allow for extended applications.
Yuanbin Zhang   +5 more
doaj   +1 more source

Ni0.25Co0.75O nanowire array supported on Cu@CuO foam, an inexpensive and durable catalyst for hydrogen generation from ammonia borane

open access: yesCatalysis Communications, 2021
The development of highly active and stable catalysts is desirable for hydrogen generation from ammonia borane (AB). In this study, Ni0.25Co0.75O nanowire array supported on Cu@CuO foam (Ni0.25Co0.75O/Cu@CuO) has been successfully fabricated.
Yufa Feng   +9 more
doaj   +1 more source

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