A highly efficient sulfonylation of thiols has been achieved through the metal-free NaI/TBHP-mediated cross-coupling of sulfonyl hydrazides and thiols at roomtemperature. This method provides a convenient and practical route to thiosulfonates in 84–99% yields (39 examples) with wide functional group compatibility.
Copper-Catalyzed Intermolecular Functionalization of Unactivated C(sp<sup>3</sup>)–H Bonds and Aliphatic Carboxylic Acids
作者:Runze Mao、Srikrishna Bera、Aurélya Christelle Turla、Xile Hu
DOI:10.1021/jacs.1c05874
日期:2021.9.15
unactivated C(sp3)–H bonds and aliphatic carboxylic acids. The process is enabled by the trapping of alkyl radicals generated through hydrogenatomabstraction by arylsulfonyl-based SOMO-philes, which introduces a large array of C, N, S, Se, and halide-based functional groups. The chemoselectivity can be switched from C–H functionalization to decarboxylative functionalization by matching the bond dissociation
Visible-Light-Triggered Sulfonylation/Aryl Migration/Desulfonylation and C–S/Se Bond Formation Reaction: 1,2,4-Trifunctionalization of Butenyl Benzothiazole Sulfone with Thiosulfonate/Selenosulfonates
作者:Xin-Yu Liu、Shi-Yin Tian、Yi-Fan Jiang、Weidong Rao、Shun-Yi Wang
DOI:10.1021/acs.orglett.1c02981
日期:2021.11.5
A visible-light-triggered radical cascade sulfonylation/aryl migration/desulfonylation and C–S/Se bond formation reaction of butenyl benzothiazole sulfone with thiosulfonates or selenosulfonates is developed. This study affords the 1,2,4-trifunctionalization of butenyl benzothiazole sulfone derivatives under mild conditions.