Wang, An published the artcileStudy on ring-opening polymerization of ε-caprolactone catalyzed by Zn(II) Schiff-base complex, Application In Synthesis of 4551-69-3, the publication is Shandong Huagong (2018), 47(20), 5-7, database is CAplus.
Ring-opening polymerization of ε-caprolactone catalyzed by Zn(II) Schiff-base complex [LZn] was studied. Using the selected [LZn] as the catalyst and 4-dimethylaminopyridine as the co-catalyst from the polymerization temperature of 80°C and the reaction time of 6 h in the solvent of toluene, the ring-opening polymerization of ε-caprolactone was carried out under nitrogen atm., where the Mn of the PCL was 24.653×103 g·mol-1 and the PDI was 1.21. The results showed that the effective ring-opening polymerization of ε-caprolactone was realized with the presence of catalyst [LZn].
Shandong Huagong published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C9H17NO, Application In Synthesis of 4551-69-3.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics