formylation

So using PPA as acid media can accelerate formylation process .

因此，选用不具氧化性又具有吸水性的酸性介质可促进甲酰化反应的进行。

Synthesis of 4-Methoxybenzaldehyde Based on the Formylation Reaction of Grignard Reagent

利用Grignard试剂的甲酰化反应合成对甲氧基苯甲醛

The current research and development trends in synthesis of salicylaldehyde including ortho-regioselective formylation , chlorination hydrolysis and reduction methods , are reviewed .

综述了合成水杨醛的甲酰化法、氯化水解法和还原法的最新研究与发展趋势。

The yield of formylation is 80.0 % .

甲酰化反应的收率为80.0%；

Taking 4-halo resorcinol as primary material , three halo-substituted salicylaldehyde were synthesized through formylation .

以4-卤间苯二酚为起始原料，通过甲酰化合成了3种卤代水杨醛。

Camphene Formylation and the Study of Stereochemistry Once Again

烯甲酰化反应及其立体化学的再研究

They are acrylaldehyde hydration , ethylene oxide formylation and biological zymolysis methods . a polymer of vinyl formaldehyde .

即丙烯醛水合法，环氧乙烷甲酰化法，生物发酵法。一种甲醛乙烯的聚合物。

The formylation reaction of the meso triphenylamine substituted porphyrin and the synthetic methods of goal porphyrins have been discussed and optimized . 4 .

对中间卟啉前体中位单取代三苯胺卟啉的甲酰化反应以及目标卟啉合成的条件优化进行了讨论。

The mechanism and process of catalytic ortho-regioselective formylation of phenol to manufacture salicylaldehyde in the presence of Sn and Mg ions is briefly summarized .

简要总结了Sn和Mg离子催化苯酚定向甲酰化制备水杨醛的反应机理及过程。

Methods Apraclonidine was synthesized from P-Nitraniline by reaction with reduction , adding protection group , formylation , chlorination , cyclization , off-protecting group .

方法采用对硝基苯胺为原料，经还原、加保护基、甲酰化、氯化、环合、脱保护基六步反应法可进行化学合成。

Study on Cultivation of Bacteria Strains for Degradation of Propylene Oxide in Wastewater and Its Degradation Effect They are acrylaldehyde hydration , ethylene oxide formylation and biological zymolysis methods .

废水中环氧丙烷降解菌株的培育及降解效果研究即丙烯醛水合法，环氧乙烷甲酰化法，生物发酵法。

The processes and catalysts for TMA production from m-xylene by formylation with carbon monoxide and aromatic aldehyde oxidation with air in water solvent were introduced , and were compared with the conventional process .

介绍了由间二甲苯经一氧化碳甲酰化和芳香醛水溶剂空气氧化生产TMA的工艺过程及其催化剂，并与传统工艺作了比较。

Formylation of 2-Butene to N-amyl Aldehyde

2-丁烯氢甲酰化制香料醛

An Improved Synthetic Method of Tyramine Using isovanillin and tyramine as the initial materials , racemic galanthamine was prepared in five steps including bromination , condensation and reduction , formylation , oxidation coupling and reduction .

酪胺制备的改进方法以异香草醛和酪胺为主要原料，经溴化、缩合还原、甲酰化、氧化偶合及还原五步反应，合成了外消旋加兰他敏。