Control of the synthesis and morphology of nano dendritic CuAl2O4 as a nanocatalyst for photoredox-catalyzed dicarbofunctionalization of styrenes with amines and CO2

Abstract

Various morphologies of a nano CuAl₂O₄ fiber microsphere were produced through diverse synthesis situations. The findings showed that the morphology, anatomy, and quantity of the fibers in the CuAl₂O₄ product are vigorously correlated with the various mechanical pressures, calcination, and hydrothermal processing time. Subsequent research has also shown that the best type of sample offers a variety of catalytic functions for carbocarboxylation of styrenes deploying CO₂ and amines by reducing the efficiency of dandelion-like CuAl₂O₄ fiber anatomy. The reaction is catalyzed by the photoredox catalyst and is adaptable with various amines and styrenes. This approach provides extremely functionalized γ-amino acids in satisfactory efficiencies with extreme regioselectivity. The reported synthesis is the first example of visible light induced synthesis of a γ-amino acid from CO₂ and includes several advantages like environmentally benign reaction conditions, a minimum amount of catalyst due to fiber structure, cost effectiveness, operational simplicity, short reaction times, excellent yields, and high atom economy, making it a genuinely green protocol.