Djekic, T. et al. published their research in Journal of Chromatography A in 2007 | CAS: 21867-64-1

1-Propylpiperazine (cas: 21867-64-1) belongs to piperazine derivatives. Piperazine belongs to the family of medicines called anthelmintics. Piperazine and its salts did not induce point mutations in a bacterial test. A series of mutagenicity studies in cells, both in vitro and in vivo, has been completed and showed no evidence of mutagenic effect.Application of 21867-64-1

Evaluation of functionalized silica’s for the adsorptive recovery of homogeneous catalysts through interaction with the metal centre was written by Djekic, T.;van der Ham, A. G. J.;de Haan, A. B.. And the article was included in Journal of Chromatography A in 2007.Application of 21867-64-1 This article mentions the following:

The goal of this paper is the evaluation of functionalized silicas for the recovery of homogeneous catalysts by adsorption via its metal center. As model catalysts, we selected bis(triphenylphosphine)cobalt(II)dichloride (CoCl2(PPh3)2), bis(triphenylphosphine)palladium(II)dichloride (PdCl2(PPh3)2) and tris(triphenylphosphine)rhodium(I)dichloride (RhCl(PPh3)3). Twelve functionalized groups selected from four classes containing one or more N-, O-, P- or S-atoms were evaluated. A preliminary selection of the adsorbents was done by investigating the adsorption of the metal salts for the cobalt and the palladium complex. The results could be explained by the Hard and Soft Acid Base (HSAB) theory. For the most suitable functionalized adsorbents, these experiments were extended by introducing the ligand in the system which promoted the competition of the functionalized groups on adsorbent and the ligands present in solution These experiments demonstrated that different complex species are adsorbed. 2-(2Pyridyl)ethyl-functionalized silica is selected as a promising adsorbent for adsorption of the CoCl2(PPh3)2 from acetonitrile, while 3-(mercapto)propyl-functionalized silica is selected as a promising adsorbent for adsorption of the PdCl2(PPh3)2 and RhCl(PPh3)3 from DMF. The presence of a ligand, an increase of the temperature and the presence of a solvent with the donor properties can decrease the adsorption equilibrium and need to be taken into account. In the experiment, the researchers used many compounds, for example, 1-Propylpiperazine (cas: 21867-64-1Application of 21867-64-1).

1-Propylpiperazine (cas: 21867-64-1) belongs to piperazine derivatives. Piperazine belongs to the family of medicines called anthelmintics. Piperazine and its salts did not induce point mutations in a bacterial test. A series of mutagenicity studies in cells, both in vitro and in vivo, has been completed and showed no evidence of mutagenic effect.Application of 21867-64-1

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics