Articles with "cross dehydrogenative" as a keyword



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Recent Developments in Transition Metal‐Catalyzed Cross‐Dehydrogenative Coupling Reactions of Ethers and Thioethers

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Published in 2018 at "ChemCatChem"

DOI: 10.1002/cctc.201800582

Abstract: Cross‐dehydrogenative coupling of two C−H bonds or a C−H and an X−H bond (X=N, O, P, S, etc.) has emerged as a powerful new synthetic methodology in the last 12 years. Using this approach, simple ethers,… read more here.

Keywords: transition metal; cross dehydrogenative; developments transition; metal catalyzed ... See more keywords
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Cross-Dehydrogenative Alkynylation: A Powerful Tool for the Synthesis of Internal Alkynes.

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Published in 2020 at "ChemSusChem"

DOI: 10.1002/cssc.202001165

Abstract: Alkynes are among the most fundamentally important organic compounds and are widely used in synthetic chemistry, biochemistry and material science. Thus, the development of an efficient and sustainable method for the preparation of alkynes has… read more here.

Keywords: dehydrogenative alkynylation; powerful tool; internal alkynes; cross dehydrogenative ... See more keywords
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Lithium benzenechromiumtricarbonyl as C-nucleophile in the cross-dehydrogenative coupling reactions of azaaromatics

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Published in 2019 at "Inorganica Chimica Acta"

DOI: 10.1016/j.ica.2018.12.040

Abstract: Abstract Direct, non-catalyzed by transition metals, the oxidative cross-dehydrogenative coupling reactions (CDC) of azines with lithium benzenechromiumtricarbonyl has been developed. A series of previously unknown benzenechromiumtricarbonyl derivatives of azines, as well as intermediates of these… read more here.

Keywords: cross dehydrogenative; lithium benzenechromiumtricarbonyl; coupling reactions; benzenechromiumtricarbonyl ... See more keywords
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WO 3 nanospheres with improved catalytic activity for visible light induced cross dehydrogenative coupling reactions

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Published in 2018 at "Journal of Photochemistry and Photobiology A: Chemistry"

DOI: 10.1016/j.jphotochem.2018.05.018

Abstract: Abstract Three tungsten oxides (WO3-W1 to WO3-W3) with different morphologies were prepared and characterized by XRD, SEM, TEM and HR-TEM measurements. The as-synthesized tungsten oxides were screened as photocatalysts for visible-light-driven cross dehydrogenative coupling (CDC)… read more here.

Keywords: visible light; cross dehydrogenative; catalytic activity; dehydrogenative coupling ... See more keywords
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Copper catalysed cross-dehydrogenative coupling (CDC) reaction of 4-thiazolidinone with terminal alkyne

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Published in 2019 at "Tetrahedron"

DOI: 10.1016/j.tet.2018.10.068

Abstract: Abstract Cross dehydrogenative coupling (CDC) strategy has been employed for C-alkynylation of 4-thiazolidinone with terminal alkyne under copper catalysis. Present reaction involves coupling of C(sp 3 ) adjacent to sulfur of 4-thiazolidinone with C(sp) of… read more here.

Keywords: dehydrogenative coupling; thiazolidinone terminal; cross dehydrogenative; terminal alkyne ... See more keywords
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Copper porphyrin-catalyzed cross dehydrogenative coupling of alkanes with carboxylic acids: Esterification and decarboxylation dual pathway

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Published in 2021 at "Tetrahedron"

DOI: 10.1016/j.tet.2021.132377

Abstract: Abstract A dual-functional copper porphyrin-catalyzed cross dehydrogenative coupling (CDC) of carboxylic acids with alkanes was reported firstly. The reaction gives allylic esters or alkylalkenes depending on the carboxylic acid substrates. Copper porphyrin catalyzed CDC method… read more here.

Keywords: copper porphyrin; cross dehydrogenative; catalyzed cross; porphyrin catalyzed ... See more keywords
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Palladium-catalyzed synthesis of indole fused coumarins via cross-dehydrogenative coupling

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Published in 2017 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2016.12.010

Abstract: Abstract The present method describes a palladium-catalyzed cross-dehydrogenative coupling reaction of coumarin and aniline for the synthesis of indole fused coumarin derivatives. The one-pot method is operationally simple and molecular oxygen is used as sole… read more here.

Keywords: cross dehydrogenative; indole fused; palladium catalyzed; dehydrogenative coupling ... See more keywords
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Cs2CO3-promoted carbon–sulfur bond construction via cross dehydrogenative coupling of thiophenols with acetonitrile

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Published in 2017 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2017.08.067

Abstract: Abstract A novel protocol for the construction of carbon–sulfur bonds has been achieved via halogen-free Cs 2 CO 3 -promoted cross dehydrogenative coupling (CDC) of thiophenols with acetonitrile. This transformation provides a straightforward route to… read more here.

Keywords: construction; cross dehydrogenative; carbon sulfur; dehydrogenative coupling ... See more keywords
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Cross-dehydrogenative coupling of 3,6-dihydro-2H-pyrans with 1,3-dicarbonyls and aryl moieties

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Published in 2019 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2019.05.016

Abstract: Abstract An indium-catalyzed oxidative C H alkylation and arylation of 4-substituted 3,6-dihydro-2H-pyrans (DHPs) using dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) as the oxidant has been developed. The mild and modular cross-dehydrogenative coupling reaction exhibited a broad scope with respect… read more here.

Keywords: pyrans dicarbonyls; coupling dihydro; dihydro pyrans; cross dehydrogenative ... See more keywords

Copper-Catalyzed C7-Selective C-H/N-H Cross-Dehydrogenative Coupling of Indolines with Sulfoximines.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c03190

Abstract: Cu-catalyzed cross-dehydrogenative coupling of the C7 C-H bond of indolines with sulfoximines has been accomplished. The reaction can be extended to the cross-dehydrogenative coupling of N-aryl 7-azaindoles with monoselectivity. The use of first-row copper catalysis,… read more here.

Keywords: dehydrogenative coupling; copper catalyzed; indolines sulfoximines; cross dehydrogenative ... See more keywords
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Hydride Transfer-Initiated Cross-Dehydrogenative Coupling Reaction to Access Nine-Membered Rings.

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Published in 2023 at "Organic letters"

DOI: 10.1021/acs.orglett.3c00193

Abstract: An unprecedented hydride transfer-triggered cross-dehydrogenative coupling of two C(sp3)-H bonds to target nine-membered rings has been developed. Salient features of this methodology include atom and step economy and metal-free and redox-neutral conditions, with water as… read more here.

Keywords: nine membered; membered rings; hydride transfer; dehydrogenative coupling ... See more keywords