Two novel 18-6 crown ethers (compounds 6 and 8) derived from a common
6-amino-6-deoxy-alpha-D-glucopyranoside framework were prepared and su
ccessfully tested for their ability to extract dopamine perchlorate fr
om an aqueous medium. The pendant primary amino-group of these hosts w
as found essential to interact with one of the phenolic function of do
pamine.