Preparation of chiral ligands connected with quaternary ammonium group for recyclable catalytic asymmetric transfer hydrogenation in ionic liquid was written by Uchimoto, Hitomi;Tsuji, Tomoko;Kawasaki, Ikuo;Arimitsu, Kenji;Yasui, Hiroyuki;Yamashita, Masayuki;Ohta, Shunsaku;Nishide, Kiyoharu. And the article was included in Chemical & Pharmaceutical Bulletin in 2015.HPLC of Formula: 6294-17-3 The following contents are mentioned in the article:
Reuse of chiral ruthenium catalyst in catalytic asym. transfer hydrogenation (CATH) has attracted attention from economic and environmental viewpoints, and reactions using ionic liquids (ILs) as solvent are recognized as one of the most useful methods for reuse of the catalyst. Authors have synthesized (1S,2S)-N-(p-toluenesulfonyl)-1,2-diphenylethylenediamine (TsDPEN) derivatives with various ionic moieties, and investigated the effect of their structure with respect to catalytic ability and recyclability in CATH with ILs. Ligand 3a having an imidazolium group showed the best results, and significant differences were observed depending on the structure of the ionic moiety or the length of the alkyl chain connecting the ligand site and the ionic moiety. Among various prochiral ketones used as substrates at various cycles, 3a showed a relatively good result. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3HPLC of Formula: 6294-17-3).
1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.HPLC of Formula: 6294-17-3
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics