Accessing oxy-functionalized N-heterocycles through rose bengal and TBHP integrated photoredox C(sp<sup>3</sup>)–O cross-coupling
作者:Rahul Dev Mandal、Moumita Saha、Asish R. Das
DOI:10.1039/d2ob00381c
日期:——
Herein, we report a practical and simple mono- and di-C(sp3)–O cross-coupling of tautomerizable N-heterocycles (dihydrophthalazine-1,4-diones, pyridone, quinoxalinone and pyrimidinone) with ketones, β-dicarbonyl compounds and nitroalkane, leading to substituted imidate derivatives under visible-light conditions. The combination of rose bengal as the photocatalyst and TBHP enables sustainable reaction
A facile synthesis of phthalimides from <i>o</i>-phthalaldehyde and amines <i>via</i> tandem cyclocondensation and α-C–H oxidation by an electrochemical oxygen reduction reaction
Electrochemical synthesis of phthalimides from o-phthalaldehyde and amines via tandem cyclocondensation and α-C–H oxygenation of isoindolinone was achieved. The α-C–H oxidation proceeded with molecular oxygen via an oxygen reduction reaction (ORR) on the cathode under electrochemical conditions. The synthetic utility of this protocol was successfully demonstrated by employing gram-scale synthesis and obtaining