Gu, Ruirui; Lehn, Jean-Marie published their research in Journal of the American Chemical Society in 2021. The article was titled 《Constitutional Dynamic Selection at Low Reynolds Number in a Triple Dynamic System: Covalent Dynamic Adaptation Driven by Double Supramolecular Self-Assembly》.Related Products of 2969-81-5 The article contains the following contents:
A triple dynamic complex system has been designed, implementing a dynamic covalent process coupled to two supramol. self-assembly steps. To this end, two dynamic covalent libraries (DCLs), DCL-1 and DCL-2, have been established on the basis of dynamic covalent C=C/C=N organo-metathesis between two Knoevenagel derivatives and two imines. Each DCL contains a barbituric acid-based Knoevenagel constituent that may undergo a sequential double self-organization process involving first the formation of hydrogen-bonded hexameric supramol. macrocycles that subsequently undergo stacking to generate a supramol. polymer SP yielding a viscous gel state. Both DCLs display selective self-organization-driven amplification of the constituent that leads to the SP. Dissociation of the SP on heating causes reversible randomization of the constituent distributions of the DCLs as a function of temperature Furthermore, diverse distribution patterns of DCL-2 were induced by modulation of temperature and solvent composition The present dynamic systems display remarkable self-organization-driven constitutional adaptation and tunable composition by coupling between dynamic covalent component selection and two-stage supramol. organization. In more general terms, they reveal dynamic adaptation by component selection in low Reynolds number conditions of living systems where frictional effects dominate inertial behavior. In the experimental materials used by the author, we found Ethyl 4-bromobutyrate(cas: 2969-81-5Related Products of 2969-81-5)
Ethyl 4-bromobutyrate(cas: 2969-81-5) belongs to bromides. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents.Related Products of 2969-81-5
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary