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Herein, we successfully fabricated ultra-small metal nanoparticles into two stable Zr-based metal–organic frameworks via in situ redox reactions between triphenylamine and the corresponding metal ions to afford Pd NPs@1 and Pd NPs@2, which exhibit excellent activity and reusability for Suzuki coupling reactions as heterogeneous catalysts. [ABSTRACT FROM AUTHOR]

Comprehensive Summary Unsymmetric sulfides and selenides have great applications in the pharmaceutical field. Herein, we describe the reductive coupling reaction of xanthate esters with sulfur‐containing and selenium‐containing compounds (thio(seleno)sulfonates and disulfides(selenides)) under the nickel‐catalyzed condition. It provides a mild and effective method for the synthesis of unsymmetric sulfides and selenides which has the advantages of mild reaction conditions, high yields and a wide range of substrates. [ABSTRACT FROM AUTHOR]

Herein, we describe a visible-light-mediated selenylation/cyclization reaction of selenium radicals generated from diselenides as radical sources with acrylimide derivatives, which provides a mild and effective method for the synthesis of symmetrical selenosubstituted pyrrolidine-2,5-diones. The described catalytic strategy has the advantages of mild reaction conditions, being metal-free, requiring no additives, easy operation, and having a good substrate range. [ABSTRACT FROM AUTHOR]

Herein, we have developed a new method for the synthesis of ((methyl-d 3 )sulfonyl)ethyne, which is cost-effective and environmentally friendly and can be synthesized at the gram level. As an ideal thiol-yne reagent, it can be reacted with various types of thiols to afford ( Z )- and ( E )-type vinyl sulfides under different conditions with high selectivity. In addition, it can complete the conformational transition from Z- to E-type products under suitable conditions, and can also carry out further derivatization smoothly. The deuterium content of all products was greater than 99%. The preliminary mechanistic studies support the visible light-mediated radical course, and herein provide a novel and efficient synthetic strategy for the direct introduction of deuterated methyl groups, enriching the methods for the construction of C-S bond-containing compounds.

A photocatalytic synthesis of thieno[3,4- c ]quinolin-4(5 H )-ones/selenopheno[3,4- c ]quinolin-4(5 H )-ones using diphenyl disulfide or diphenyl diselenide as sulfur or selenium sources was developed. Two C-S/Se bonds and one C-C bond were constructed simultaneously without transition metals and other additives.