Figure 3 | Scientific Reports

Figure 3

From: Sustainable and recyclable heterogenous palladium catalysts from rice husk-derived biosilicates for Suzuki-Miyaura cross-couplings, aerobic oxidations and stereoselective cascade carbocyclizations

Figure 3

(a) Table demonstrating the recyclability study of RHP-Si-NH2-Pd(0) catalyst in the catalytic Suzuki-Miyaura reaction. (b) Expanding the reaction scope of the devised catalyst RHP-Si-NH2-Pd(0) for the oxidation of the cinnamyl alcohol 4 to the corresponding cinnamic aldehyde 5. (c) Expanding the reaction scope for the combined heterogeneous palladium and amine catalyzed stereoselective carbocylization reaction between the cinnamic aldehyde 5 and propargylcyanomalonate 6. Definitions: n.d; not determined, d.r.; diastereomeric ratio and e.r.; enantiomeric ratio.

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