申请人:Ma Shengming
公开号:US08748669B2
公开(公告)日:2014-06-10
Provided is a process for producing aldehydes or ketones by oxidizing alcohols with oxygen, which comprises oxidizing alcohols to aldehydes or ketones in an organic solvent at room temperature with oxygen or air as an oxidant, wherein ferric nitrate (Fe(NO3)3.9H2O), 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO) and an inorganic chloride are used as catalysts, the reaction time is 1-24 hours, and the molar ratio of said alcohols, 2,2,6,6-tetramethylpiperidine N-oxyl and the inorganic chloride is 100:1˜10:1˜10:1˜10. The present process has the advantages of high yield, mild reaction conditions, simple operation, convenient separation and purification, recoverable solvents, substrates used therefor being various and no pollution, and therefore it is adaptable to industrialization.
本发明提供了一种使用
氧气氧化醇制备醛或酮的方法,其中在有机溶剂中,在室温下使用
氧气或空气作为氧化剂将醇氧化为醛或酮。本方法使用
硝酸铁(Fe(
NO3)3.9H2O)、
2,2,6,6-四甲基哌啶-N-氧化物(
TEMPO)和一种无机
氯化物作为催化剂,反应时间为1-24小时,所述醇、
2,2,6,6-四甲基哌啶-N-氧化物和无机
氯化物的摩尔比为100:1~10:1~10:1~10。本方法具有收率高、反应条件温和、操作简单、分离纯化方便、溶剂可回收、底物种类多样且无污染等优点,因此适用于工业化生产。