This study emphasizes on using different types of reactants to obtain compounds belonging to the same class, alkylpyrazines. The mechanism of these reactions is one of cyclo-dehydrogenation on the surface of a mixed oxide catalyst, e.g. ZnAl. Different types of reactions have been performed, using diamines, hydroxyamines or a diamine and a diol. The raw materials used and the various reaction parameters like temperature, space velocity and molar ratio of the reactants present a significant influence in the conversion and selectivity values. The conversion of reactants was quasi-total while the selectivity of the yielded products varies from 95.9% to a complex mixture of products. The ZnAl catalyst is thermally stable with the catalytic sites easily regenerated.

Graphical abstract

中文翻译：

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由机械化学方法获得的层状双氢氧化物衍生的 ZnAl 混合氧化物气相合成烷基吡嗪

本研究强调使用不同类型的反应物来获得属于同一类的化合物，即烷基吡嗪。这些反应的机理是一种在混合氧化物催化剂（例如ZnAl）表面上的环脱氢作用。使用二胺、羟胺或二胺和二醇进行了不同类型的反应。所用的原材料和各种反应参数，如反应物的温度、空速和摩尔比，对转化率和选择性值有显着影响。反应物的转化率是准总转化率，而所得产物的选择性从 95.9% 到复杂的产物混合物不等。ZnAl 催化剂热稳定，催化位点容易再生。

图形概要