| 摘要 |
<p>New aza-crown-ethers having the general formula$(5,)$in which a) X is oxygen and R is hydrogen, alkyl, aralkyl, aryl, alkoxyalkyl, hydroxyalkyl, alkoxycarbonylalkyl, carbamoylalkyl, nitrophenyldiazophenyl or$(5,)$in which n is 2 or 3, or b) X is N-R', and R and R' together form the group$(5,)$in which n is 2 or 3. The new aza-crown-ethers have complexing ability, particularly towards sodium and potassium.</p> |
