The invention provides a method for synthesizing a novel beta-
cyclodextrin derivative modified by radicals containing
oxazoline by using beta-
cyclodextrin, and also provides a method for modifying the surface of common
silica gel into hydrogenated
silica gel and bonding the
cyclodextrin derivative to the hydrogenated
silica gel by using appropriate small molecules. An
oxazoline derivative ligand used in the method provided by the invention has a very good
rigid structure and a chiral recognition site, and is beneficial for improving the separation selectivity of a chiral selector to an
enantiomer, and expanding the separation range of chiral compounds. According to the methods provided by the invention, 6-deoxy-6-R,S-(4-phenyl)-4,5-dihydrogen
oxazoline-beta-cyclodextrin and 6-deoxy-6-R,S-(4-
pyridine p-
toluene sulfonate methyl)-4,5-dihydrogen oxazoline-beta-cyclodextrin are synthesized respectively by virtue of simple and easy operation steps, and are bonded to the hydrogenated silica gel to prepare a hydrogenated silica gel
stationary phase. The whole synthetic
route is simple in operation and mild in reaction condition, and the product is easy to purify and high in yield. The methods provided by the invention are applied to chiral separation, and are used for performing qualitative researches on certain chiral aromatic alcohols,
ferrocene derivatives,
amino acid and
mandelic acid derivatives and chiral drugs in a polar organic mode and a reversed phase mode.