42066-65-9Relevant academic research and scientific papers
Copper-Catalyzed Intermolecular Functionalization of Unactivated C(sp3)-H Bonds and Aliphatic Carboxylic Acids
Mao, Runze,Bera, Srikrishna,Turla, Aurélya Christelle,Hu, Xile
supporting information, p. 14667 - 14675 (2021/09/18)
Intermolecular functionalization of C(sp3)-H bonds and aliphatic carboxylic acids enables the efficient synthesis of high value-added organic compounds from readily available starting materials. Although methods involving hydrogen atom transfer have been developed for such functionalization, these methods either work for only activated C(sp3)-H bonds or bring in a narrow set of functional groups. Here we describe a Cu-catalyzed process for the diverse functionalization of both unactivated C(sp3)-H bonds and aliphatic carboxylic acids. The process is enabled by the trapping of alkyl radicals generated through hydrogen atom abstraction 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 energy of the hydrogen atom transfer reagent with that of the target C-H or O-H bond.
A comparative study of Cu(II)-assisted vs Cu(II)-free chalcogenation on benzyl and 2°/3°-cycloalkyl moieties
Sahoo, Santosh K
, p. 2151 - 2157 (2016/01/12)
A relative synthetic strategy toward intermolecular oxidative C -Chalcogen bond formation of alkanes has been illustrated using both Cu(II) assisted vs Cu(II) free conditions. This led to construction of a comparative study of hydrocarbon benzylic and 2°/ 3°-cycloalkyl moieties bond sulfenylation and selenation protocol by the chalcogen sources, particularly sulfur and selenium, respectively. In addition, this protocol disclosed the auspicious formation of sp3 C-S coupling products over leading the sp3 C-N coupling products by using 2-mercaptobenzothiazole (MBT) substrates.
Syntheses of sulfides and selenides through direct oxidative functionalization of C(sp3)-H bond
Du, Bingnan,Jin, Bo,Sun, Peipei
supporting information, p. 3032 - 3035 (2014/06/23)
A new protocol for C-S and C-Se bond formation by the direct functionalization of the C(sp3)-H bond of alkanes under metal-free conditions was developed. Using tBuOOtBu as the oxidant, the reaction of disulfides or diselenides with alkanes gave sulfides or selenides in moderate to good yields. The method was very simple and atom-economical.
