Application of 2623-87-2In 2019 ,《Imprinting supramolecular chirality on silica from natural triterpenoid-regulated helical ribbons》 was published in Materials Chemistry Frontiers. The article was written by Gao, Yuxia; Hao, Jie; Liu, Jinguo; Liang, Yun; Du, Fengpei; Hu, Jun; Ju, Yong. The article contains the following contents:
Supramol. chirality has attracted significant attention because of its critical roles in the life and material sciences. In this study, a natural triterpenoid-tailored amphiphilic mol. C4-MOP was designed and synthesized, in which the pyridinium head group was modified on the skeleton of triterpenoid through an alkyl linker. The introduction of pyridinium not only offers a hydrophilic cation to promote the assembly process but also renders itself as the nucleation point to adsorb silica precursors. The results showed that by adjusting the solvent compositions and the concentration of C4-MOP, well-ordered helical nanoribbons with both right- and left-handedness were fabricated by the assembly of C4-MOP, where the hydrophilic pyridinium cations were helically displayed on the surface of ribbons. Subsequently, by taking advantage of electrostatic interactions between pyridinium and the silica precursor, the supramol. chirality of C4-MOP was successfully imprinted onto the silica nanostructures using the gel-sol mineralization process. Our work provides a simple yet useful strategy to prepare chiral silica, which could promote the applications of chiral natural products in material science. The experimental part of the paper was very detailed, including the reaction process of 4-Bromobutanoic acid(cas: 2623-87-2Application of 2623-87-2)
4-Bromobutanoic acid(cas: 2623-87-2) belongs to carboxylic acids. The chief chemical characteristic of the carboxylic acids is their acidity. They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than the familiar mineral acids (e.g., hydrochloric acid, HCl, sulfuric acid, H2SO4, etc.).Application of 2623-87-2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary