Silica sulfuric acid/NaNO2 as a novel heterogeneous system for the chemoselective alpha-nitrosation of beta-diketones under mild conditions

摘要

A combination of silica sulfuric acid and sodium nitrite in the presence of wet SiO2 was used as an effective nitrosating agent for the nitrosation of beta-diketones to their corresponding a-nitroso or alpha-oximinoketones under mild and heterogenous conditions in moderate to excellent yields. [References: 27]