Liang, Huazhe published the artcilePolyamidoamine Immobilized TEMPO Mediated Oxidation of Cellulose: Effect of Macromolecular Catalyst Structure on the Reaction Rate, Oxidation Degree and Degradation Degree, Application In Synthesis of 826-36-8, the publication is Fibers and Polymers (2020), 21(6), 1251-1258, database is CAplus.
A series of polyamidoamine (PAMAM) immobilized TEMPO macromol. catalysts were prepared by condensation reduction reactions between carbonyl groups in 4-O-TEMPO and primary amines in PAMAM. The macromol. catalyst and NaBr/NaClO were used as catalytic system for selective oxidation of cellulose in aqueous medium. Effects of various factors, such as TEMPO loading ratios and PAMAM generations, were studied on the catalytic performances. Compared with free TEMPO, the macromol. catalyst with less than 50% TEMPO loading ratio had a higher reaction rate in the initial stage of the reaction. Especially, the reaction rate of G1.0 PAMAM with 30% TEMPO loading ratio was comparable to free TEMPO in the whole reaction process. Its cellulose oxidation degree (or catalytic activity) was also equivalent to the level of free TEMPO. Interestingly, the cellulose depolymerization degree of macromol. catalyst was not affected by the cellulose oxidation degree and was lower than that of free TEMPO. The macromol. catalyst could be recycled efficiently by the combination of supernatant circulation and salting-out extraction, and the recycling performance was excellent.
Fibers and Polymers published new progress about 826-36-8. 826-36-8 belongs to piperidines, auxiliary class Natural product, name is 2,2,6,6-Tetramethylpiperidin-4-one, and the molecular formula is C9H17NO, Application In Synthesis of 826-36-8.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem