Research on enhancing of the regioselective oxidation of cellulose from bagasse pith by ultrasonic pretreatments was written by Gao, Xin;Zhang, Heng;Chen, Keli;Liu, Qixing;Zhu, Zhengliang. And the article was included in Cailiao Daobao in 2014.Application of 14691-89-5 This article mentions the following:
Cellulose from bagasse pith was pretreated by ultrasonic wave. The influence of ultrasound treatment on regioselective oxidation by 4-acetamide-2,2,6,6-tetramethylpiperidine-1-oxyl (4-AcNH-TEMPO)/NaClO/NaClO2 systems was discussed. The results were shown that the regioselective oxidation reactivity of cellulose was significantly improved by the ultrasound treatment. And the ultrasound power and time were the most important factors on the properties of oxidized cellulose. Furthermore, the oxidized products obtained from this reactive system were comprised of water-soluble and insoluble samples. The structure and morphol. of native cellulose, pretreated samples and the two kinds of oxidized products were characterized by means of FT-IR, SEM and XRD. In the experiment, the researchers used many compounds, for example, 4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl (cas: 14691-89-5Application of 14691-89-5).
4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl (cas: 14691-89-5) belongs to piperidine derivatives. Piperidine is a metabolite of cadaverine, a polyamine found in the human intestine. Industrially, piperidine is produced by the hydrogenation of pyridine, usually over a molybdenum disulfide catalyst. Pyridine can also be reduced to piperidine via a modified Birch reduction using sodium in ethanol.Application of 14691-89-5
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem