137170-74-2Relevant articles and documents
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.
Reductive Addition of Alkyl Radical to Phenyl Vinyl Sulfone
Togo, Hideo,Aoki, Masahiko,Yokoyama, Masataka
, p. 2169 - 2172 (2007/10/02)
Radicals generated from (diacyloxyiodo)benzene readily added to phenyl vinyl sulfone to give 2-alkylethyl phenyl sulfone in the presence of a hydrogen donor such as 1,4-cyclohexadiene, 1,3-dioxolane, or triethylsilane.Among these donors, 1,4-cyclohexadien
SOME FURTHER NOVEL TRANSFORMATIONS OF GEMINAL (PYRIDINE-2-THIYL) PHENYLSULPHONES
Barton, Derek H. R.,Boivin, Jean,Sarma, Jadab,Silva, Elisabeth da,Zard, Samir Z.
, p. 4237 - 4240 (2007/10/02)
Geminal (pyridine-2-thiyl) phenylsulphones, obtained by decarboxylative radical addition of O-acyl derivatives of N-hydroxy-2-thiopyridone onto phenyl vinyl sulphone, undergo a wide variety of further transformations when subjected to sodium telluride or to organoaluminum reagents.