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有机化学
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有机化学 ›› 1991, Vol. 11 ›› Issue (3): 318-321. 上一篇    下一篇

研究论文

2,2-亚戊基1,3-二氧六环-4,6-二酮与原甲酸三乙酯和芳香胺的反应

徐福培;丁维钰;笪宝林   

  1. 上海科技大学化学系
  • 发布日期:1991-06-25

Reactions of 2,2-pentamethylene-1,3-dioxan-4,6-dione with triethyl orthoformate and aromatic amines

XU FUPEI;DING WEIYU;DA BAOLIN   

  • Published:1991-06-25

PDF

609

被引次数

1

本文通过控制反应温度, 催化剂用量, 提高了2,2-亚戊基1,3-二氧六环-4,6-二酮制备得率, 还研究了该化合的与原甲酸三乙酯和芳香胺的反应。

关键词: 缩合反应, 乙酯, 甲酸 P, 反应机理, 红外分光光度法, 质谱法, 元素分析, 羧酸酯, 二元酮, 质子磁共振谱法

Condensation of 2,2-pentamethylene-1,3-dioxane-4,6-dione with tri-Et orthoformate and a series of substituted anilines proceeds smoothly to give 39.7-96.9% the corresponding anils I (R = halo, NO2, Me, etc.). Lack of the characteristic peak of hydroxy group in IR and appearance of the proton on nitrogen atom in down field of 1H NMR indicate that the most possible structure of the anil is the intermol. hydrogen-bonded form.

Key words: REACTION MECHANISM, CONDENSATION REACTION, INFRARED SPECTROPHOTOMETRY, ETHYL ESTER, FORMIC ACID P, MASS SPECTROGRAPHY, DIKETONE, ELEMENTAL ANALYSIS, CARBOXYLIC ACID ESTER, PROTON MAGNETIC RESONANCE SPECTROMETRY

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