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Herein, we report the synthesis of C2‐symmetric sulfonamides as homogeneous and heterogeneous organocatalysts and their application in the enantioselective conjugate 1,4‐Michael addition of carbonylic nucleophiles to β‐nitrostyrene. Organocatalysts hydrogen bond to β‐nitrostyrene and enamine in the transition state, mimicking an enzyme leading to final products in high yields (up to 98%) and good...
This work reports for the first time the trends for carbon monoxide (CO) chemisorption on transition metal clusters present in supported metal catalysts. In particular, the energetic, structural and infrared adsorption characteristics of linearly (atop) CO adsorbed on transition metal nano-clusters of less than 10Å in size were explored. Spin-unrestricted density functional theory (DFT) calculations...
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