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一锅法合成3-腈基-4苯并吡喃酮类化合物 被引量:1

One-pot Synthesis of 3-Cyano-4-benzopyrones
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摘要 以各种取代的邻羟基苯乙酮为起始原料,经Vilsmeier试剂环合得中间体3-甲酰基色酮,不经分离纯化,直接与盐酸羟胺反应合成了一系列3-腈基4苯并吡喃酮类化合物,总收率47%-74%,其结构经^1HNMR,IR和MS确证。 3-Cyano-4-benzopyrones in overall yields of 47% -74% were synthesized from various substituted o-hydroxyacetophenones by one-pot method of cyclizafion in the presence of Vilsmeier reagent, and followed by treatment with hydroxylamine hydrochloride. The structures were confirmed by ^1H NMR, IR and MS.
出处 《合成化学》 CAS CSCD 北大核心 2010年第1期113-115,共3页 Chinese Journal of Synthetic Chemistry
关键词 苯并吡喃酮 邻羟基苯乙酮 Vilsmeier试剂 一锅法 合成 benzopyrones o-hydroxyacetophenones Vilsmeier reagent one-pot synthesis
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