1360571-25-0Relevant articles and documents
Aerobic Oxidative Sulfenylation of Pyrazolones and Pyrazoles Catalyzed by Metal-Free Flavin-Iodine Catalysis
Tanimoto, Kazumasa,Ohkado, Ryoma,Iida, Hiroki
, p. 14980 - 14986 (2019/11/13)
Two-component metal-free catalytic oxidative sulfenylation of pyrazolones with thiols has been achieved using the biomimetic flavin and iodine. The methodology is mild and eco-friendly, proceeds in the presence of air or molecular oxygen (1 atm) as the sole sacrificial reagent, and generates water as the only byproduct. The methodology was also extended to the sulfenylation of pyrazoles and electron-rich benzenes and afforded a series of thioethers in good yields.
Carbon-sulfur bond formation of challenging substrates at low temperature by using Pd-PEPPSI-IPent
Sayah, Mahmoud,Organ, Michael G.
supporting information; experimental part, p. 11719 - 11722 (2011/11/29)
Aryl thiols made cool and quick: The coupling of alkyl, aryl, and silyl thiols to hindered, deactivated aryl bromides and chlorides has been achieved under the most mild temperatures yet reported (i.e., room temperature to 40°C). The bulk afforded by the di-2,6-(3-propylphenyl)imidazolium-derived Pd-PEPPSI-IPent catalyst is believed to actively promote the critical reductive elimination step of the catalytic cycle, thereby eliminating the formation of poisonous off-cycle dimeric resting states that have plagued Pd-catalyzed sulfination reactions.
