Articles with "sp2 bond" as a keyword



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Ligand‐Assisted Heteroaryl C(sp2)−H Bond Activation by a Cationic Ruthenium(II) Complex for Alkenylation of Heteroarenes with Alkynes Directed by Biorelevant Heterocycles

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Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201701016

Abstract: Alkenylation of heteroarenes with alkynes has been achieved through ligand‐assisted heteroaryl C(sp2)−H bond activation by an in situ generated cationic RuII complex directed by the biorelevant heterocyclic scaffolds benzothiazole and benzoxazole, giving broad scope with… read more here.

Keywords: ligand assisted; alkenylation heteroarenes; sp2 bond; heteroaryl sp2 ... See more keywords
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Synthesis of 1,4-dihydropyrazolo[4,3-b]indoles via intramolecular C(sp2)-N bond formation involving nitrene insertion, DFT study and their anticancer assessment.

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Published in 2021 at "Bioorganic chemistry"

DOI: 10.1016/j.bioorg.2021.105114

Abstract: We herein report a new synthetic route for a series of unreported 1,4-dihydropyrazolo[4,3-b]indoles (6-8) via deoxygenation of o-nitrophenyl-substituted N-aryl pyrazoles and subsequent intramolecular (sp2)-N bond formation under microwave irradiation expedite modified Cadogan condition. This method… read more here.

Keywords: bond formation; intramolecular sp2; indoles via; dft study ... See more keywords

Recent Advances in Alkenyl sp2 C-H and C-F Bond Functionalizations: Scope, Mechanism, and Applications.

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Published in 2022 at "Chemical reviews"

DOI: 10.1021/acs.chemrev.2c00032

Abstract: Alkenes and their derivatives are featured widely in a variety of natural products, pharmaceuticals, and advanced materials. Significant efforts have been made toward the development of new and practical methods to access this important class… read more here.

Keywords: review; bond functionalizations; alkenyl sp2; sp2 bond ... See more keywords
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Deacetylative Aryl Migration of Diaryliodonium Salts with C(sp2)-N Bond Formation toward ortho-Iodo N-Aryl Sulfonamides.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c01024

Abstract: An unprecedented approach of metal-free C(sp2)-N bond formation via deacetylation/intramolecular aryl migration is demonstrated with novel N-sulfonamide substituted diaryliodonium salts. The reaction provides a variety of ortho-iodo N-aryl sulfonamides. The products were employed in several… read more here.

Keywords: ortho iodo; diaryliodonium salts; bond formation; aryl migration ... See more keywords
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Photoredox-Catalyzed Cascade sp2 C-H Bond Functionalization to Construct Substituted Acridine with Diarylamine and Hypervalent Iodine(III) Reagents.

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Published in 2023 at "Organic letters"

DOI: 10.1021/acs.orglett.2c04114

Abstract: A photocatalyzed cascade double C-C formation via sp2 C-H bond activation of diarylamines with hypervalent iodine diazo reagents was developed. A variety of diarylamines and hypervalent iodine(III) reagents were tolerated well, and a range of… read more here.

Keywords: hypervalent iodine; cascade; iodine iii; sp2 bond ... See more keywords

Rotation configuration control of the sp2 bond in the diimidazole-dicarboxylate linker for the isomerism of porous coordination polymers.

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Published in 2022 at "Dalton transactions"

DOI: 10.1039/d2dt01982e

Abstract: Porous isomers constructed from the same building blocks but different topology break the general preferred coordination rule of organic linkers and metal nodes, representing an invaluable opportunity for enriching their pore chemistry. Herein, a new… read more here.

Keywords: rotation configuration; coordination; diimidazole dicarboxylate; sp2 bond ... See more keywords
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Molybdenum(V)-mediated switching of the C(sp2)-Se bond of phenylselenyl-functionalized arenes or heterocycles under mild conditions.

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Published in 2023 at "Chemical communications"

DOI: 10.1039/d3cc01119d

Abstract: Molybdenum(V)-mediated cleavage of C(sp2)-Se bond and C(sp2)-H bond as well as intramolecular oxidative C(sp2)-Se coupling reaction of phenylselenyl-functionalized arenes or heterocycles has been developed. Three kinds of benzoselenophene frameworks were constructed through this reaction with… read more here.

Keywords: arenes heterocycles; functionalized arenes; sp2 bond; phenylselenyl functionalized ... See more keywords