摘要:
A series of novel ionophores was synthesized in three steps from acrylonitrile and diethyl malonate or malononitrile via 2,8-diazaspiro[5,5]undecane-1,7-dione (7) or 2,8-diazaspiro[5,5]undecane-1,3,7,9-tetrone (8). Spirodiamide macrocycle 14 imparts selectivity for lithium to potentiometric ion-selective electrodes.