Functionalized Imidazalium Carboxylates for Enhancing Practical Applicability in Cellulose Processing was written by Xu, Airong;Chen, Lin;Wang, Jianji. And the article was included in Macromolecules (Washington, DC, United States) in 2018.Formula: C10H16BrN This article mentions the following:
Developing cellulose-based products is highly important because of their low-cost, reproducibility, and biodegradability. However, extensive application for cellulose was actually hindered due to its well-known insolubility Herein, some 22 novel functionalized imidazalium carboxylates exhibit tremendously enhanced dissolution capacity for cellulose even without extra energy consumption and are much superior to the previously reported solvents so far. Systematic investigations reveal that the powerful dissolution capacity for cellulose mainly results from the contribution of the imidazolium skeleton cation, not replacing acidic H atoms in imidazolium skeleton by alkyl, binding more allyl in N atoms of imidazolium cation, and binding an electron-donating group in carboxylate anion. Of particular importance, porous cellulose materials with varying micro-morphol., for the first time, are reported by tuning the anionic and/or cationic structures of an IL. Moreover, the regenerated cellulose material retains sufficient thermal stability and chem. structure. Therefore, this investigation provides a viable strategy for practical application in cellulose conversion into valuable products even without extra heating. In the experiment, the researchers used many compounds, for example, 1-Butyl-4-methylpyridin-1-ium bromide (cas: 65350-59-6Formula: C10H16BrN).
1-Butyl-4-methylpyridin-1-ium bromide (cas: 65350-59-6) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ·mol−1 in pyridine vs. 150 kJ·mol−1 in benzene). Halopyridines are particularly attractive synthetic building blocks in a variety of cross-coupling methods, including the Suzuki-Miyaura cross-coupling reaction.Formula: C10H16BrN