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  1. Article ; Online: Selective O-Acylation of Enol Silyl Ethers with Acyl Fluorides Catalyzed by Fluoride Ions Derived from Potassium Fluoride and 18-Crown-6.

    Sakai, Norio / Watanabe, Kota / Mori, Haruka / Maegawa, Yuki / Takeuchi, Ryuki / Ogiwara, Yohei / Ishida, Kento

    ChemistryOpen

    2024  , Page(s) e202300300

    Abstract: The fluoride ion-catalyzed selective O-acylation of enol silyl ethers with acyl fluorides using KF and 18-Crown-6 is described herein. This catalytic system facilitated the practical and facile reaction of a variety of enol silyl ethers derived from ... ...

    Abstract The fluoride ion-catalyzed selective O-acylation of enol silyl ethers with acyl fluorides using KF and 18-Crown-6 is described herein. This catalytic system facilitated the practical and facile reaction of a variety of enol silyl ethers derived from aromatic/aliphatic ketones and aldehydes with acyl fluorides to afford useful and valuable enol esters.
    Language English
    Publishing date 2024-01-29
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2655605-4
    ISSN 2191-1363 ; 2191-1363
    ISSN (online) 2191-1363
    ISSN 2191-1363
    DOI 10.1002/open.202300300
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Disilathiane as a Sulfur Source for the Construction of Isothiochromenes and Benzo[b]thiophenes by Copper-Catalyzed endo-Selective Hydrothiolation

    Nakajima, Takumi / Takeuchi, Ryuki / Oomori, Keita / Ishida, Kento / Ogiwara, Yohei / Sakai, Norio

    Synthesis

    2022  Volume 55, Issue 05, Page(s) 779–785

    Abstract: A copper-catalyzed construction of isothiochromenes and benzo[ b ]thiophenes via annulation with 1,1,1,3,3,3-hexamethyldisilathiane as a sulfur source is described. In the isothiochromene synthesis, the use of the disilathiane as a sulfur source ... ...

    Abstract A copper-catalyzed construction of isothiochromenes and benzo[ b ]thiophenes via annulation with 1,1,1,3,3,3-hexamethyldisilathiane as a sulfur source is described. In the isothiochromene synthesis, the use of the disilathiane as a sulfur source successfully controls the regioselectivity of cyclization to afford the isothiochromene as the sole product. The present strategy can be applied to the synthesis of 2-aryl/2-alkylbenzo[ b ]thiophenes.
    Keywords disilathiane ; isothiochromene ; benzo[ ; ]thiophene ; copper catalyst ; annulation
    Language English
    Publishing date 2022-09-29
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 2033062-5
    ISSN 1437-210X ; 0039-7881
    ISSN (online) 1437-210X
    ISSN 0039-7881
    DOI 10.1055/a-1953-4534
    Database Thieme publisher's database

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