Xu, Tie-Qi; Yu, Zhi-Qi; Zhang, Xue-Min published the article 《Recyclable Vinyl-Functionalized Polyesters via Chemoselective Organopolymerization of Bifunctional α-Methylene-δ-Valerolactone》. Keywords: recyclable vinyl functionalized polyester chemoselective organopolymn.They researched the compound: 1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene( cas:141556-42-5 ).COA of Formula: C21H24N2. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:141556-42-5) here.
α-Methylene-δ-valerolactone (MVL) is a bifunctional monomer comprising of a highly stable six-membered δ-valerolactone ring and highly reactive C=C bond. Previously, the vinyl-addition polymerization (VAP) product, namely P(MVL)VAP, has been formed exclusively. In this study, this conventional chemoselectivity is reversed, wherein organic catalysts are used to enable the first ring-opening polymerization (ROP) of MVL, exclusively affording a metal-free, unsaturated polyester, namely P(MVL)ROP. This challenging goal is achieved by investigating different catalysts, initiators, and reaction conditions. In addition, the formation of two polymers, namely P(MVL)ROP and P(MVL)VAP, is easily regulated by varying the polymerization solvent. The resulting P(MVL)ROP can be easily post-functionalized to form crosslinked or sulfurized materials; notably, it can be almost completely converted into its monomer thermochem.
Compound(141556-42-5)COA of Formula: C21H24N2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene), if you are interested, you can check out my other related articles.
Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles