A convenient one-pot synthesis of 2-aroylindoles using a dominopalladium-catalyzed C,N-coupling/carbonylation/C,C-coupling sequence is described. The reaction involved easily prepared 2-gem-dibromovinylanilines and boronic acids under carbon monoxide. Optimized reaction conditions allowed the construction of a wide variety of highly functionalized 2-aroyl-/heteroaroylindoles in satisfactory yields
Carbazoquinocin Analogues as Small Molecule Biomimetic Organocatalysts in Dehydrogenative Coupling of Amines
作者:Samrat Kundu、Chayan Ghosh、Abhisek Metya、Ankush Banerjee、Modhu Sudan Maji
DOI:10.1021/acs.orglett.4c00229
日期:2024.3.1
biomimetic ortho-quinone catalysts structurally resembling carbazoquinocin alkaloids have been introduced to promote tunable, metal cocatalyst-free, organocatalytic, dehydrogenative amineoxidationunderaerobicconditions. Differently substituted benzyl amines were tolerated under optimized conditions to provide imines in excellent yields. Further efficacy of the catalyst was demonstrated by synthesizing