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以2-羟基-1-萘甲醛和2-羟甲基冠醚为原料,合成3种新的含萘并呋喃基团冠醚(3a-3c),并经1 H NMR,13C NMR,MS及元素分析确证.碱金属和碱土金属离子的加入对体系的最大吸收波长影响不大.Li+使3b摩尔吸光度变大,Ca2+和Ba2+引起3a-3c最大发射波长λem发生相对较大红移,同时使其荧光强度降低.
Three kinds of crown ethers (3a-3c) containing naphthofurfuryl groups were synthesized from 2-hydroxy-1-naphthaldehyde and 2-hydroxymethyl crown ether and characterized by 1 H NMR, 13C NMR, MS and It was confirmed by elemental analysis that the addition of alkali metal and alkaline earth metal ions had little effect on the maximum absorption wavelength of the system, and the increase of 3b molar absorbance caused by Li + and the relatively large red shift of the maximum emission wavelength of 3a-3c caused by Ca2 + and Ba2 + Fluorescence intensity decreased.