The research on the amino acid by dehydrogenation alkanolamine(s) in catalyst was recommended.

介绍了国内外醇胺催制备氨基酸的研究发展情况。

Preparation process of p cymene with gas phase catalytic dehydrogenation of industrial dipentene was studied and the following results were obtained.

对工业双戊烯气相催制备对伞烃进行了研究并取得了理想结果。

Pyrazole has been prepared through the dehydrogenation of 2 pyrazoline in which catalytic amonts of sodium iodide acts as dehydrogenation agent in sulfuric acid.

在硫酸中用碘钠(催量)作2吡唑啉制备吡唑。

The main synthetic methods of o-phenylphenol were reviewed.The method and research status of dehydrogenation to o-phenylphenol after cyclohexane condensation reaction were discussed detailedly.

摘要介绍合成邻苯基苯酚的几种主要工艺方法，对环己酮缩合法制邻苯基苯酚的合成方法及研究状况进行详细阐述。