The invention discloses a tanshinone
benzimidazole fluorescent probe for detecting ClO <-> ions as well as a preparation method and application of the tanshinone
benzimidazole fluorescent probe, and belongs to the technical field of fine
organic synthesis. 4-(1, 6, 6-trimethyl-7, 8, 9, 12-tetrahydro-6H-
furan [2 ', 3': 1, 2] phenanthro [3, 4-d]
imidazole-11-yl)
benzaldehyde is prepared through direct
condensation reaction of
tanshinone IIa with terephthalaldehyde and
ammonium acetate, then the 4-(1, 6, 6-trimethyl-7, 8, 9, 12-tetrahydro-6H-
furan [2 ', 3': 1, 2] phenanthro [3, 4-d]
imidazole-11-yl)
benzaldehyde reacts with 2, 3-diamino-2-
butene dinitrile to synthesize 2-amino-3-(((E)-4-(1, 6, 6-trimethyl-7, 8, 9, 12-tetrahydro-6H-
furan [2 ', 3': 1, 2] The compound is (2R, 3R, 4R, 4R, 4d)
imidazole-11-yl) benzylidene) amino) maleic
nitrile. Benzimidazolyl and
diaminomaleonitrile Schiff base groups are introduced into the probe, the probe can selectively react with ClO <->,
fluorescence is enhanced, and the detection result is accurate.