Photo-Ritter Reaction of Arylmethyl Bromides in Acetonitrile
作者:Nai-Min Bi、Ming-Guang Ren、Qin-Hua Song
DOI:10.1080/00397910903297555
日期:2010.8.5
The photo-Ritter reaction of five arylmethyl bromides can occur in acetonitrile to give acetamides. The intermediates, carbocations, which are formed from subsequent electron transfer between the radical pairs generated from initial homolytic cleavage of the C–Br bond, are trapped by acetonitrile, and subsequent hydrolysis generates the corresponding acetamides.
C(sp<sup>3</sup>)–H Ritter amination by excitation of <i>in situ</i> generated iodine(<scp>iii</scp>)–BF<sub>3</sub> complexes
作者:Rok Narobe、Kathiravan Murugesan、Christoph Haag、Tobias Emanuel Schirmer、Burkhard König
DOI:10.1039/d2cc03283j
日期:——
Visible light excitation of iodine(III)–BF3 complex enables the formation of carbocations from C(sp3)–H bonds. The complexes are generated catalytically from iodoarene, carboxylate ligand, the oxidizing agent Selectfluor, and the Lewis acid BF3. This modular catalytic system allows the formation of synthetically valuable amine derivatives without a metal- or photocatalyst.