Catalytic Conversion of 2-Naphthol to 2-Hydroxy-1,4-naphthoquinone Under Mild Conditions

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2004,（5）
• 页码范围: 487-491
• 页数: 5页
• 语种: 英文

摘要

2-Hydroxy-l,4-naphthaquinone (HNQ) was selectively synthesized from catalytic oxidation of 2-naphthol by molecular oxygen over tetra(4-methoxyl-phenyl)porphyrinate iron(III) chloride (TMOPPFeC1) catalyst in an alkali methanol solution under mild conditions.The influences of solvents,temperature,time,as well as amounts of catalysts and alkali were studied.The quantitative data show that 32.9% of 2-naphthol (0.093 mol/dm3) was catalytically converted to HNQ with the selectivity of 100% at 323 K for 9 h over TMOPPFeC1 catalyst (2.54×10-4mol/dm3) in alkali media (30 mL of methanol containing 2.5 mol/dm3 of NaOH) by flowing molecular oxygen (flowing rate of 45 mL/min).