F. Trotta et al., ALKYL CAPPED CARBONATES OF BETA-CYCLODEXTRIN, Journal of inclusion phenomena and molecular recognition in chemistry, 23(4), 1995, pp. 269-276
The synthesis is described of alkyl capped carbonates of beta-cyclodex
trin, obtained from diols activated with carbonyldiimidazole. The reac
tion preferentially gave monocapped derivatives which were characteriz
ed by HPLC, TLC, FT-IR and C-13-NMR. These compounds are stable at pH
<7, and methyl orange was found to form stronger inclusion compounds w
ith capped-beta-cyclodextrin than with the parent beta-cyclodextrin. P
aramagnetic Gd(III) complexes were also studied, but they were found t
o be included into capped beta-cyclodextrin as well as into beta-cyclo
dextrin.