A supported palladium nanocatalyst for copper free acyl Sonogashira reactions: One-pot multicomponent synthesis of N-containing heterocycles
作者： Subhankar Santra , Kalyan Dhara , Priyadarshi Ranjan , Parthasarathi Bera , Jyotirmayee Dash
DOI: 10.1039/C1GC15869D
关键词:
摘要: A convenient method has been developed for the synthesis of palladium nanoparticles (PdNPs) embedded into a polymer matrix, PPS [PPS = poly(1,4-phenylene sulfide)], via thermolysis acetate. X-ray photoelectron spectroscopy (XPS) studies confirmed presence strong sulfur coordination to nanoclusters. These (PdNPs-PPS) have used as an efficient heterogeneous nanocatalytic system copper free acyl Sonogashira reaction. wide range ynones was synthesized in high yields under mild reaction conditions. The catalyst recovered and recycled up four times. Transmission electron microscopy (TEM) images revealed that maintained nanospheric dimensions consecutive catalytic cycles. This simple protocol further explored one-pot multicomponent 2,4-disubstituted pyrimidines tetrahydro-β-carboline derivative improved yield.
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