Articles with "phosphine free" as a keyword



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Phosphine-free synthesis of high-quality CdTe quantum dots: The combination of TeO2-dodecanethiol and oleylamine as Te precursor

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Published in 2017 at "Materials Letters"

DOI: 10.1016/j.matlet.2017.01.045

Abstract: Abstract Currently, the synthesis of CdTe quantum dots (QDs) in organic phase has basically involved costly and air-sensitive reagents such as alkylphosphines, making a more economical approach desirable. Here, a phosphine-free approach has been developed… read more here.

Keywords: cdte quantum; combination teo2; precursor; quantum dots ... See more keywords
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Ligand-controlled phosphine-free Co(II)-catalysed cross-coupling of secondary and primary alcohols

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Published in 2019 at "Tetrahedron"

DOI: 10.1016/j.tet.2019.130640

Abstract: Abstract Cobalt(II) complexes (5 mol% Co) bearing phosphine-free N˄N˄N pincer ligands efficiently catalyze C–C coupling of secondary and primary alcohols to selectively form α-alkylated ketones with a good functional group compatibility using NaOH (20 mol%) as a… read more here.

Keywords: secondary primary; coupling secondary; controlled phosphine; ligand controlled ... See more keywords
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Transfer Hydrogenation of Carbonyl Derivatives Catalyzed by an Inexpensive Phosphine-Free Manganese Precatalyst.

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Published in 2017 at "Organic letters"

DOI: 10.1021/acs.orglett.7b01657

Abstract: A very simple and inexpensive catalytic system based on abundant manganese as transition metal and on an inexpensive phosphine-free bidendate ligand, 2-(aminomethyl)pyridine, has been developed for the reduction of a large variety of carbonyl derivatives… read more here.

Keywords: transfer hydrogenation; inexpensive phosphine; carbonyl derivatives; phosphine free ... See more keywords
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Phosphine-Free Manganese Catalyst Enables Selective Transfer Hydrogenation of Nitriles to Primary and Secondary Amines Using Ammonia–Borane

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Published in 2021 at "ACS Catalysis"

DOI: 10.1021/acscatal.0c05406

Abstract: Herein we report the synthesis of primary and secondary amines by nitrile hydrogenation, employing a borrowing hydrogenation strategy. A class of phosphine-free manganese(I) complexes bearing sulfu... read more here.

Keywords: primary secondary; phosphine free; free manganese; secondary amines ... See more keywords
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Atomically dispersed palladium catalyses Suzuki–Miyaura reactions under phosphine-free conditions

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Published in 2020 at "Communications Chemistry"

DOI: 10.1038/s42004-020-0289-y

Abstract: Single-atom catalysts have emerged as a new frontier in catalysis science. However, their applications are still limited to small molecule activations in the gas phase, the classic organic transformations catalyzed by single-atom catalysts are still… read more here.

Keywords: zno zro; suzuki miyaura; single atom; catalyst ... See more keywords
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Efficient and phosphine-free bidentate N-heterocyclic carbene/ruthenium catalytic systems for the dehydrogenative amidation of alcohols and amines

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Published in 2019 at "Organic Chemistry Frontiers"

DOI: 10.1039/c8qo00902c

Abstract: An efficient and phosphine-free bidentate NHC/Ru catalytic system was discovered for the dehydrogenative amide synthesis from alcohols and amines. read more here.

Keywords: bidentate heterocyclic; phosphine free; free bidentate; efficient phosphine ... See more keywords
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Design and applications of new phosphine-free tetradentate Pd-catalyst: Regioselective C–H activation on 1-substituted 1,2,3-triazoles and indoles(NH-Free)

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Published in 2018 at "Synthetic Communications"

DOI: 10.1080/00397911.2017.1381260

Abstract: ABSTRACT This article describes the synthesis of a new phosphine free tetradentate Pd catalyst using dl-2,3-diaminopropionic acid. The complex was characterized by Mass, IR, and 1H NMR. The catalyst is air stable at room temperature… read more here.

Keywords: free tetradentate; tetradentate catalyst; catalyst regioselective; new phosphine ... See more keywords
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Phosphine free synthesis of copper telluride nanocrystals in 1D and 2D shapes using Dipehylditelluride (DPDTe) as an air-stable source

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Published in 2022 at "Nanotechnology"

DOI: 10.1088/1361-6528/ac6814

Abstract: In this paper, we have developed a ‘phosphine-free’ method for synthesising copper telluride nanocrystals using diphenyl ditelluride as an air-stable tellurium source. The diphenyl ditelluride is shown to have optimal reactivity for the colloidal synthesis… read more here.

Keywords: copper telluride; air stable; copper; telluride nanocrystals ... See more keywords
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Synthesis of Group II-VI Semiconductor Nanocrystals via Phosphine Free Method and Their Application in Solution Processed Photovoltaic Devices

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Published in 2021 at "Nanomaterials"

DOI: 10.3390/nano11082071

Abstract: Solution-processed CdTe semiconductor nanocrystals (NCs) have exhibited astonishing potential in fabricating low-cost, low materials consumption and highly efficient photovoltaic devices. However, most of the conventional CdTe NCs reported are synthesized through high temperature microemulsion method… read more here.

Keywords: semiconductor; method; free method; application ... See more keywords