氰乙酸

应用UHF-INDO方法对氰乙酸自由基结构的计算

Calculation of structure of cyanoacetic acid free radical by uhf-indo method

结果：以氰乙酸计，总收率44。4%。目标产物的光谱数据与文献报道一致。

Results : A total yield of44.4 % ( calculated as cyanoacetic acid ) was obtained and its spectral data obtained were identical with those reported in literature .

在氟化钾催化下，芳香醛与氰乙酸乙酯发生羰基与活性亚甲基的缩合反应，高收率地得到缩合产物，且只得到E式产物。

The carbonyl methylene condensation reaction of aromatic aldehydes with ethyl cyanoacetate has been carried out smoothly in the presence of potassium fluoride only giving E isomers in high yield .

以亲水性离子液体1-丁基-3-甲基咪唑对甲基苯磺酸盐作反应介质，醋酸铵为催化剂，研究了不同的芳香醛和脂肪醛与活泼亚甲基类化合物氰乙酸乙酯进行Knoevenagel缩合反应。

The knoevenagel condensation of carbonyl substrates with active methylene compound was investigated using ammonium acetate as catalyst in presence of ionic liquid [ p-CH3C6H4SO3 ] .

结果表明，乙氧基甲叉氰乙酸乙酯是致敏原。

The result indicated that ethoxy methylene cyanacetic ester is sensitive agent .

氰乙酸乙酯在近临界水中的水解反应

Hydrolysis of Ethyl Cyanoacetate in Near-critical Water

以氰乙酸乙酯与正丁醇为原料，采用酯交换法合成氰乙酸正丁酯。

By using ethyl cyanoacetate and n-butanol as raw materials , butyl cynoacetate was synthesized through interesterification .

采用无毒溶剂，在无催化剂条件下，用氰乙酸乙酯与多聚甲醛反应，成功地合成了α－氰基丙烯酸乙酯。

Ethyl - α - cyanoacrylate was successfully synthetized by condensation of Et cyanoacetate with paraformaldehyde without catalyst and toxic solvent .

本文报道在碳酸钾存在下，丙二酸二乙酯、氰乙酸乙酯的固液相烃基化反应。

The alkylation of diethyl malonate and ethyl cyanoacetate using powdered potassium carbonate asa base in the absence of solvent and other catalyst is studied .