Complexation of Some Phenol Hosts with Quinoline N-Oxide and the Structural Studies of Their Complexes by X-ray Crystallography

Abstract

The 1:1 inclusion complexes of phenol hosts, 4,4′-isopropylidenebisphenol, 4,4′-cyclohexylidenebisphenol, and 4-(1,1,3,3-tetramethylbutyl)phenol, with quinoline N-oxide were obtained in good yields. Single-crystal X-ray structural analyses revealed the molecular arrangement of the inclusion complexes.

Enantioresolution of 2,2′-Bis(diphenylphosphino)-1,1′-binaphthyl Oxide Using Inclusion Complex with Chiral 2,2′-Dihydroxy-1,1′-binaphtyl

“…However, there are a few reports of enantioresolution of 1 using inclusion complexes with tartaric acid or camphorsulfonic acid as a resolution reagent. − In our previous reports, we revealed that some phenols were useful for the formation of the inclusion complex of several compounds, such as 2-quinolone, quinoline, isoquinoline, and quinoline N -oxide, through a strong hydrogen-bonding network . The application using a hydrogen-bonding network with phenol derivatives is of interest in the field of enantioresolution as well.…”