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An efficient P(V)–N activation approach for the synthesis of cytidine diphosphate choline (CDP-choline) and related ribo- and deoxyribonucleotide analogs has been established. [ABSTRACT FROM PUBLISHER]

In this paper, ten diaryl carbazide undergo selective and rapid oxidation to the corresponding diaryl carbazone using NaNO2–acetic anhydride as a novel oxidant under mild conditions for the first time. [ABSTRACT FROM AUTHOR]

A combination of sodium hydrogen sulfate and sodium nitrite in the presence of SiO2 was used as an effective oxidizing agent for the oxidation of aryl substituted α,β-unsaturated acyl hydrazides to their corresponding azo compounds at room temperature with excellent yields. [ABSTRACT FROM AUTHOR]