Habermann, Joerg et al. published their research in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry in 1998 | CAS: 33439-27-9

1-Tosylpiperidin-4-one (cas: 33439-27-9) belongs to piperidine derivatives. Piperidine and its derivatives have become increasingly popular in many synthetic schemes. 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.SDS of cas: 33439-27-9

Clean six-step synthesis of a piperidino-thiomorpholine library using polymer-supported reagents was written by Habermann, Joerg;Ley, Steven V.;Scott, James S.. And the article was included in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry in 1998.SDS of cas: 33439-27-9 This article mentions the following:

Polymer-supported reagents and other solid sequestering agents, e.g., polymer-supported (dimethylamino)pyridine and Amberlyst A21, were used to generate a library of piperidinothiomorpholines, e.g., I (R = 4-Me, 4-F, 3-F3C; R1 = 4-MeO, H, 3-F3C, 3,4-Cl2), without any chromatog. purification steps. In the experiment, the researchers used many compounds, for example, 1-Tosylpiperidin-4-one (cas: 33439-27-9SDS of cas: 33439-27-9).

1-Tosylpiperidin-4-one (cas: 33439-27-9) belongs to piperidine derivatives. Piperidine and its derivatives have become increasingly popular in many synthetic schemes. 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.SDS of cas: 33439-27-9

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem