Wu, Peng published the artcileChromatographic Resolution of α-Amino Acids by (R)-(3,3′-Halogen Substituted-1,1′-binaphthyl)-20-crown-6 Stationary Phase in HPLC, Formula: C22H18O2, the publication is Chinese Journal of Chemistry (2017), 35(7), 1037-1042, database is CAplus.
Three new chiral stationary phases (CSPs) for high-performance liquid chromatog. were prepared from R-(3,3-halogen substituted-1,1-binaphthyl)-20-crown-6 (halogen = Cl, Br and I ). The exptl. results showed that R-(3,3-dibromo-1,1-binaphthyl)-20-crown-6 (CSP-1) possesses more prominent enantioselectivity than the two other halogen-substituted crown ether derivatives All twenty-one α-amino acids have different degrees of separation on R-(3,3-dibromo-1,1-binaphthyl)-20-crown-6-based CSP-1 at room temperature The enantioselectivity of CSP-1 is also better than those of some com. R-(1,1-binaphthyl)-20-crown-6 derivatives Both the separation factors (α) and the resolution (Rs) are better than those of com. crown ether-based CSPs [CROWNPAK CR(+) from Daicel] under the same conditions for asparagine, threonine, proline, arginine, serine, histidine and valine, which cannot be separated by com. CR(+). This study proves the com. usefulness of the R-(3,3-dibromo-1,1-binaphthyl)-20-crown-6 chiral stationary phase.
Chinese Journal of Chemistry published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C18H26ClN3O, Formula: C22H18O2.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem