中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
四甘醇单苄醚 | 1-phenyl-2,5,8,11-tetraoxatridecan-13-ol | 86259-87-2 | C15H24O5 | 284.353 |
三甘醇单苄醚 | triethylene glycol monobenzyl ether | 55489-58-2 | C13H20O4 | 240.299 |
二乙二醇单苯甲醚 | diethylene glycol monobenzyl ether | 2050-25-1 | C11H16O3 | 196.246 |
—— | 1-chloro-10-phenyl-3,6,9-trioxadecane | 105891-50-7 | C13H19ClO3 | 258.745 |
Convenient macrocyclization synthetic routes for the preparation of different-sized monoaza anthracylmethyl crown ether chemosensors (15-crown-5, 18-crown-6, 21-crown-7, 24-crown-8, and 27-crown-9) are described. Evaluation of these crowns as chemosensors for saxitoxin revealed that the larger crowns have moderately higher binding constants, with the 27-crown-9 chemosensor having the largest binding constant (2.29 × 105 (mol/L)–1). Fluorescence enhancements of 100% were observed at saxitoxin concentrations of 5 µmol/L, which is close to the detection limit in mouse bioassay.Key words: anthracene, crown ethers, saxitoxin, paralytic shellfish poison (PSP), binding constants; chemosensors.