1) pyroracemic aldehyde
丙酮醛法
1.
The method of 4-methylimidazole synthesis using pyroracemic aldehyde was selected,and flow chart and operation process were studied.
本文对4-甲基咪唑常用的几种合成方法进行了介绍,对其工业化生产的优缺点进行了对比,最终选定了丙酮醛法,并给出了工艺流程图和操作步骤。
2) methylglyoxal
丙酮醛
1.
Studies on 1,2-propylene glycol oxidation to prepare methylglyoxal;
丙二醇氧化制备丙酮醛的研究
2.
Using the chemical reaction route selection method proposed by the authors, a reaction route of using commercial methylglyoxal as the starting material to produce Furaneol was chosen.
今采用作者提出的化学反应路径选择因子对呋喃酮的合成方法进行计算比较,确定了以丙酮醛为原料,通过偶联反应合成中间体苏式3,4-二羟基-2,5-己二酮,再由成环反应制备产物呋喃酮的合成路线。
3.
Methylimidazole(4 MI) was synthesized by reaction of methylglyoxal,formaldehyde,and ammonia/ammonium oxalate.
研究了以丙酮醛、甲醛、氨／草酸铵合成４甲基咪唑的方法，在ｎ（ 甲醛）∶ｎ（ 丙酮醛）∶ｎ（草酸铵）＝ （１－０～１－０５）∶１－０∶（１－４ ～１－６），ｎ（ 水）∶ｎ（ 丙酮醛） ＞１７－７∶１－０，ｐＨ＝３－０～４－０，反应温度５５～６０ ℃，４甲基咪唑收率最高可达８３－６％ ，产品纯度＞９８－５％ 。
3) pyruvic aldehyde
丙酮醛
1.
Several process technologies for synthesis of pyruvic aldehyde are reviewed The preparation method from propanediol and acetone has been introduced in detail The advantage and disadvantage are also been discussed.
总结了目前生产丙酮醛的几种常见方法,并进行了比较,对丙二醇法和丙酮法进行了比较详细的介绍。
2.
The technology of 4-methylimidazole, an intermediate of medicines, produced from pyruvic aldehyde, formaldehyde, ammonia water and ammonium oxalate etc was studied in this paper.
研究了以丙酮醛、甲醛、氨水及草酸铵等为原料合成药物中间体4-甲基咪唑的工艺路线,分析了反应机理,考察了pH值等因素对反应收率的影响,并用DSC、IR、GC等方法对产物进行了分析。
4) pyruvaldehyde
[,pairu:'vældihaid]
丙酮醛
1.
dimethyl - 4 - hydroxy - 3(2H)furanone has been synthesized by the hydrogenatic coupling of pyruvaldehyde and cyclization under the basis conditions.
以丙酮醛为原料 ,在乙酸水溶液中用锌粉氢化二聚 ,然后在碱性溶液中闭环 ,合成了一种重要的杂环香料呋喃酮 ,产率达 2 8。
2.
Then with V(DMSO)∶V(bromoacetone)=11 9∶1 0,and by bubbling of air at 65-70 ℃ for 5-8 h,pyruvaldehyde was produced in 59 6% yield.
分别用丙酮和 1,2 丙二醇做原料合成了丙酮醛。
3.
Modified synthesis of furanone from pyruvaldehyde by microwave irradiation was studied.
以丙酮醛为原料采用微波法环化合成呋喃酮。
5) chloral-acetone
氯醛丙酮
6) acetonformaldehyde
甲醛丙酮
补充资料：丙酮醛
分子式：C3H4O2
分子量：72.0634
CAS号：78-98-8
性质：暂无
制备方法：暂无
用途：可作西咪替丁、乳酸、丙酮酸、止痛药、抗癌、抗高血压药、脱敏剂、化妆品等原料。
分子量：72.0634
CAS号：78-98-8
性质：暂无
制备方法：暂无
用途：可作西咪替丁、乳酸、丙酮酸、止痛药、抗癌、抗高血压药、脱敏剂、化妆品等原料。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条