Copper-Catalyzed Disulfonation of Terminal Alkynes with Sodium Arylsulfinates.
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DOI: 10.1021/acs.orglett.0c00575
Abstract: A novel and direct disulfonylation reaction of commercially available terminal alkynes under copper(I)/bromodifluoroacetate cocatalyst has been realized. This protocol provides a facile and practical pathway to selectively access (E)-1,2-disulfonylethenes, in which features good functional group… read more here.
Keywords: catalyzed disulfonation; copper catalyzed; terminal alkynes; alkynes sodium ... See more keywords
Photoinduced Photocatalyst-Free Cascade Cyclization of Alkynes with Sodium Sulfinates for the Synthesis of Benzothiophenes and Thioflavones
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DOI: 10.3390/molecules28114436
Abstract: The subject of this investigation is a new method for the construction of sulfonylated heterocycles which overcomes the limitations of classical approaches using a cheap feedstock sulfonylating agent, especially under photocatalyst- and metal-free conditions. read more here.
Keywords: photocatalyst free; cascade cyclization; free cascade; alkynes sodium ... See more keywords