对以四氢萘为原料制备α-四氢萘酮的工艺进行了研究. 反应分两步进行: 首先以金属卟啉为催化剂催化空气氧化四氢萘,得到主要成分为α-四氢萘过氧化氢和α-四氢萘酮的氧化产物;然后以过渡金属盐为催化剂,将氧化产物中的α-四氢萘过氧化氢定向分解为α-四氢萘酮. 结果表明,四氢萘的金属卟啉催化氧化产物主要是α-四氢萘过氧化氢和α-四氢萘酮,仅得到微量的α-四氢萘醇. 含过渡金属CuⅠ和FeⅡ离子的盐类可以高选择性地将四氢萘氧化产物中α-四氢萘过氧化氢定向转化为α-四氢萘酮, FeⅡ离子的活性最高. 详细考察了不同金属卟啉及其浓度、温度对催化氧化四氢萘的影响;考察了不同金属离子及其浓度、温度对分解过程的影响. 对金属卟啉的催化氧化机理及过渡金属离子分解α-四氢萘过氧化氢机理进行了探讨.
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