Articles with "cyclization aromatization" as a keyword



Multicomponent Tandem Cyclization/Aromatization Reaction: Access to 2‐Substituted Naphthothiazoles and Benzothiazoles

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Published in 2024 at "European Journal of Organic Chemistry"

DOI: 10.1002/ejoc.202400449

Abstract: A straightforward, metal‐free multicomponent tandem cyclization/aromatization approach for the synthesis of naphthothiazoles and benzothiazoles has been described. This method employs α‐tetralone and cyclohexenones as the starting materials, styrene derivatives as a one‐carbon synthon, ammonium salt… read more here.

Keywords: cyclization aromatization; tandem cyclization; naphthothiazoles benzothiazoles; multicomponent tandem ... See more keywords

The synthesis of perfluoroalkylated indolizines via tandem cyclization/aromatization

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Published in 2021 at "Journal of Fluorine Chemistry"

DOI: 10.1016/j.jfluchem.2021.109900

Abstract: Abstract The incorporation of a perfluoroalkyl group into heterocycles has received increasing attention. Herein we describe the synthesis of perfluoroalkylated indolizines via a tandem cyclization/aromatization process under mild conditions. In contrast to previous synthetic methods,… read more here.

Keywords: tandem cyclization; cyclization aromatization; indolizines via; via tandem ... See more keywords

B2pin2-Mediated Cascade Cyclization/Aromatization Reaction: Facial Access to Functionalized Indolizines.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c02905

Abstract: Herein, a B2pin2-mediated radical cascade cyclization/aromatization reaction of enaminone with pyridine is described. This strategy provides a practical way for the construction of valuable functionalized indolizines under metal-, external oxidant-, and base-free conditions, which could… read more here.

Keywords: aromatization reaction; cascade cyclization; reaction; functionalized indolizines ... See more keywords

Organophosphoric Acid Catalyzed Cyclization–Aromatization of 3-Vinylindoles and 2-Vinylpyridines to Access C3N2 Carbazole–Pyridine Frameworks

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Published in 2025 at "Synlett"

DOI: 10.1055/a-2550-8091

Abstract: A practical, organophosphoric acid-catalyzed, two-component cyclization–aromatization reaction of 3-vinylindoles with 2-vinylpyridines has been established for the efficient assembly of various functionalized 1-pyridin-2-yl-9 H -carbazole skeletons. This transformation involves an organophosphoric acid-catalyzed [4+2] cycloaddition reaction, together… read more here.

Keywords: cyclization aromatization; vinylindoles vinylpyridines; acid catalyzed; organophosphoric acid ... See more keywords

С21n‑alkylbenzene and 1‑n‑alklylnaphthalene in Oils: Isotope Effect during Cyclization/Aromatization?

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Published in 2020 at "Geochemistry International"

DOI: 10.1134/s0016702920010036

Abstract: Abstract—Carbon isotope composition was analyzed in С21n‑alkylbenzene and n‑alklylnaphthalene from five Upper Devonian oils of the Timan–Pechora Basin. In spite of the variations in carbon isotope composition, the difference in δ13C between n‑alkylbenzene and n‑alklylnaphthalene… read more here.

Keywords: 21n alkylbenzene; alkylbenzene alklylnaphthalene; cyclization aromatization; alklylnaphthalene ... See more keywords