Inexpensive copper catalysts enabled direct C–H chalcogenations at ambient temperature by means of photo-induced catalysis. The expedient copper catalysis set the stage for C–S and C–Se bond formation from readily accessible non-volatile elemental chalcogens. The photo-assisted copper catalysis manifold proved suitable for a wide range of substrates with good functional group tolerance and exhibited
15-Membered Macrocyclic Schiff-Base-Pd(0) Complex Immobilized on Fe3O4 MNPs: An Novel Nanomagnetic Catalyst for the One-Pot Three-Component C–H Chalcogenation of Azoles by S8 and Aryl Iodides
This fact that diaryl sulfides are important structural components in polymers, agrochemicals, natural products, and pharmaceutical intermediates has increased the attention of chemists to synthesize these compounds. In recent times, the research on the preparation of diaryl sulfides using magnetically reusable catalysts have received profound attention in organic chemistry. In this paper, we describe
and mild carbon-sulfur coupling was realized by nickel catalysis under ball-milling conditions. The desired thioether products were generated from aryl iodides and aromatic thiol/disulfides with broad substrate scope. The Ni(i)/Ni(III) catalytic cycle was facilitated by the mechanochemistry process, thus providing an eco-friendly and time-saving strategy for the construction of the C−S bond in practical
Fe<sub>3</sub>O<sub>4</sub>@ABA-aniline-CuI nanocomposite as a highly efficient and reusable nanocatalyst for the synthesis of benzothiazole-sulfide aryls and heteroaryls
作者:Mingzhe Sun、Wei Liu、Wei Wu、Qun Li、Li Shen
DOI:10.1039/d3ra03069e
日期:——
difficult reactions and the synthesis of complexed molecules such as benzothiazole-sulfide aryls. In this work, CuI was successfully immobilized on the surface of magnetic Fe3O4 nanoparticles modified with aniline and 4-aminobenzoic acid [Fe3O4@ABA-Aniline-CuI nanocomposite] and its catalytic activity was investigated in the preparation of a broad range of benzothiazole-sulfide aryls and heteroaryls through
HFIP Promoted Low-Temperature S<sub>N</sub>Ar of Chloroheteroarenes Using Thiols and Amines
作者:Yuvraj B. Bhujabal、Kamlesh S. Vadagaonkar、Aniket Gholap、Yogesh S. Sanghvi、Rambabu Dandela、Anant R. Kapdi
DOI:10.1021/acs.joc.9b02371
日期:2019.12.6
A highly efficient and an unprecedented hexafluoro-2-propanol, promoting low-temperature aromatic nucleophilic substitutions of chloroheteroarenes, has been performed using thiols and (secondary) amines under base free and metal-free conditions. The developed protocol also provides excellent regio-control for the selective functionalization of dichloroheteroarenes, while the utility of the protocol was demonstrated by the modification of a commercially available drug ceritinib.