Qiao, Zongjun published the artcileDirect Cross-Coupling Access to Diverse Aromatic Sulfide: Palladium-Catalyzed Double C-S Bond Construction Using Na2S2O3 as a Sulfurating Reagent, Quality Control of 69626-75-1, the publication is Organic Letters (2014), 16(4), 1212-1215, database is CAplus and MEDLINE.
The Pd-catalyzed cross-coupling of aryl halides, alkyl halides, and Na2S2O3·5H2O to deliver aromatic thioethers is described. Pyridine, furan, thiophene, benzofuran, benzoxazole, benzothiophene, benzothiazole, and pyrazine are all amenable to this protocol. The odorless and stable solid Na2S2O3·5H2O was used as a convenient and environmentally friendly source of sulfur. Pd-catalyzed cross-couplings without thiols or thiophenols to build C-S bonds have not previously been achieved, which renders our observation more striking. Thus, e.g., PdCl2(dppf)/dppf-catalyzed cross coupling of 4-(MeCO)C6H4I with nBu-Cl using Na2S2O3·5H2O and Cs2CO3 as base in DMSO/glycol afforded 4-(MeCO)C6H4SBu-n in 88% yield.
Organic Letters published new progress about 69626-75-1. 69626-75-1 belongs to benzofurans, auxiliary class Iodide,Benzofuran, name is 2-Iodobenzofuran, and the molecular formula is C8H5IO, Quality Control of 69626-75-1.
Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem