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α-重氮-δ-羟基-1,3-二羰基化合物的脱水(英文)

The Dehydration of α-Diazo-δ-Hydroxy-1,3-Dicarbonyl Compounds
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摘要 在Ac2O,Et3N存在和DMPA催化下,α 重氮 δ 羟基 1,3 二羰基化合物在苯中回流,产生共轭和非共轭的不饱和α 重氮 1,3 二羰基化合物。两者的比例与底物环的大小和反应温度有关. The dehydration of α-diazo-δ-hydroxy-1,3-dicarbonyl compounds gave the conjugated α-diazo unsaturated 1,3-dicarbonyl compound 3 and non-conjugated α-diazo unsaturated 1,3-dicarbonyl compound 4 at reflux in benzene in the presence of Ac2 O, Et3 N and DMPA (cat.). The ratio of compound 3 to compound 4 varied with the size of cycle and reaction temperature.
作者 邓桂胜
机构地区 晓庄学院化学化工学院化学系
出处 《晓庄学院自然科学学报》 EI CAS 北大核心 2003年第3期51-55,共5页 Journal of Natural Science of Hunan Normal University
关键词 α-重氮-δ-羟基-1 3-二羰基化合物 脱水 回流 Ac2O Et3N DMPA 催化剂 反应温度 Benzene Reaction kinetics Thermal effects
分类号 O625.64 [理学—有机化学]
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晓庄学院自然科学学报
2003年 第3期

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