A Facile Route to Prepare PbZr Nanocomposite Catalysts for the Efficient Synthesis of Diphenyl Carbonate was written by Wang, Songlin;Jiang, Nan;Liang, Lei;Niu, Hongying;Chen, Tong;Wang, Gongying. And the article was included in Catalysis Letters in 2021.Application In Synthesis of Diphenyl carbonate The following contents are mentioned in the article:
Di-Ph carbonate is a versatile chem. intermediate and key building block for the synthesis of polycarbonates. A facile route to prepare PbZr nanocomposites were developed using different precipitants to investigate the effect on the catalytic activity of the solid acid catalysts. The structure-performance relationship of the nanocomposites, dispersion of active components and structure stability, and the catalytic performance were thoroughly analyzed. The results showed that there existed the interaction between Zr and Pb, which induced the homogenous dispersion of Pb and high surface acid sites that could enhance the catalytic activities. Among the catalysts, PbZr-NH4OH represented the best catalytic performance and superior stability, indicating that NH4OH was more favorable compared with sodium hydroxide, ammonium carbonate and urea. The research provides a valuable reference in a wide range application of nanocomposite preparation for the effective and clean production of various carbonates. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Application In Synthesis of Diphenyl carbonate).
Diphenyl carbonate (cas: 102-09-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application In Synthesis of Diphenyl carbonate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics