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  1. Article ; Online: Synthesis of Five-Membered

    Ruer, Paul C / Nassar, Youssef / Polák, Peter / Cossy, Janine

    The Journal of organic chemistry

    2023  Volume 88, Issue 11, Page(s) 7228–7232

    Abstract: ... Five- ... ...

    Abstract Five-membered
    Language English
    Publishing date 2023-05-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.3c00464
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  2. Article ; Online: Incorporation of a cyclobutyl substituent in molecules by transition metal-catalyzed cross-coupling reactions.

    Cossy, Janine / Polàk, Peter / Ruer, Paul C

    Organic & biomolecular chemistry

    2022  Volume 20, Issue 38, Page(s) 7529–7553

    Abstract: In this review, the incorporation of a cyclobutyl substituent in molecules, by transition metal-catalyzed cross-coupling, is described by only considering the formation of C-C bonds. Three main strategies are used to introduce a cyclobutyl substituent in ...

    Abstract In this review, the incorporation of a cyclobutyl substituent in molecules, by transition metal-catalyzed cross-coupling, is described by only considering the formation of C-C bonds. Three main strategies are used to introduce a cyclobutyl substituent in molecules by involving either electrophilic or nucleophilic cyclobutane derivatives.
    Language English
    Publishing date 2022-10-05
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2097583-1
    ISSN 1477-0539 ; 1477-0520
    ISSN (online) 1477-0539
    ISSN 1477-0520
    DOI 10.1039/d2ob01045c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Recyclable Polyethylene Glycol Ubiquinol Succinate-Bound N-Heterocyclic Carbene–Gold(I) Complexes: Sustainable Micellar Catalysis in Water

    Ballmann, Monika / Ruer, Paul C. / Hofnagel, Oliver / Hiller, Wolf / Krause, Norbert

    ACS sustainable chemistry & engineering. 2022 May 23, v. 10, no. 22

    2022  

    Abstract: An efficient synthesis of three amphiphilic polyethylene glycol ubiquinol succinate (PQS)-bound N-heterocyclic carbene (NHC)–gold(I) complexes as micellar catalysts in bulk water was developed. The surfactant-bound gold catalysts were applied in three ... ...

    Abstract An efficient synthesis of three amphiphilic polyethylene glycol ubiquinol succinate (PQS)-bound N-heterocyclic carbene (NHC)–gold(I) complexes as micellar catalysts in bulk water was developed. The surfactant-bound gold catalysts were applied in three different cyclization reactions of acetylenic or allenic substrates, with the main focus being the gold-catalyzed dehydrative cyclization of alkynediols to furans. An effective recycling of the designer surfactant-bound NHC–gold(I) catalysts in water was demonstrated for all cyclization reactions. With sodium dodecyl sulfate as the cosurfactant, a significant acceleration of the catalytic reactions was observed. Mechanistic investigations of the gold-catalyzed dehydrative cyclization of alkynediols point to possible causes for this acceleration effect.
    Keywords carbenes ; catalytic activity ; furans ; gold ; green chemistry ; heterocyclic nitrogen compounds ; polyethylene glycol ; sodium dodecyl sulfate ; succinic acid
    Language English
    Dates of publication 2022-0523
    Size p. 7288-7298.
    Publishing place American Chemical Society
    Document type Article
    ISSN 2168-0485
    DOI 10.1021/acssuschemeng.2c00713
    Database NAL-Catalogue (AGRICOLA)

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