高选择性制备呋喃铵盐工艺的改进
Journal of Liaoning University(Natural Science Edition)(2016)
Abstract
目的:通过工艺改进实现原料2-乙酰呋喃的完全转化,提高中间体2-甲氧亚氨基-2-呋喃乙酸的顺式结构的选择性,从而提高呋喃铵盐的收率,降低成本.方法:以2-乙酰呋喃为原料,通过氧化、肟化、成盐三步反应制备呋喃铵盐.结果:通过液相检测2-乙酰呋喃的氧化转化率提高到100%,2-甲氧亚氨基-2-呋喃乙酸的顺式选择性从82.55%提高到97%,产品收率达到85%.结论:该制备方法操作简便、工艺稳定、收率高.
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