Publications by authors named "Roberto E Blanco-Carapia"
A diversity-oriented synthesis (DOS) of two new polyheterocyclic compounds was performed via an Ugi-Zhu/cascade (-acylation/ Diels-Alder cycloaddition/decarboxylation/dehydration)/click strategy, both step-by-step to optimize all involved experimental stages, and in one pot manner to evaluate the scope and sustainability of this polyheterocyclic-focused synthetic strategy. In both ways, the yields were excellent, considering the high number of bonds formed with release of only one carbon dioxide and two molecules of water. The Ugi-Zhu reaction was carried out using the 4-formylbenzonitrile as orthogonal reagent, where the formyl group was first transformed into the pyrrolo[3,4-]pyridin-5-one core, and then the remaining nitrile group was further converted into two different nitrogen-containing polyheterocycles, both via click-type cycloadditions.
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- The study focused on how the structure of Mg-CUK-1 changes when water (HO) molecules are added, examining the material at various levels of moisture.
- Using Powder X-ray diffraction (PXRD), the researchers measured how the dimensions of the Mg-CUK-1 material changed as more HO was loaded, applying a specific refinement technique to analyze the data.
- They discovered that when one water molecule is trapped in the structure (at around 18% humidity), it creates a bottleneck effect that enhances the material's ability to capture carbon dioxide (CO).