The invention discloses an isolongifolanone-based fluorescent probe for detecting hydrazine as well as a preparation method and application of the isolongifolanone-based fluorescent probe. Isolongifolanone is used as a
raw material and is subjected to condensation with 2-amino-4 '-bromobenzophenone, the condensation product and 4-hydroxyphenylboronic acid are subjected to Suzuki
coupling, the
coupling product and urotropine are subjected to
formylation, the
formylation product and 1-bromobutane are etherified, and the isolongifolanone derivative is obtained. The preparation method comprises the following steps: reacting 2-(2-(4-butoxy-4 '-(1, 1, 5, 5-tetramethyl-1, 3, 4, 5, 6, 12b-hexahydro-2H-2, 4a-arbor methyl benzacridine-7-yl)-[1, 1'-
biphenyl]-3-yl) vinyl)-3-ethyl-
benzothiazole-3-
onium (abbreviated as ABP-BBT) by using 2-(2-(4-butoxy-4 '-(1, 1, 5, 5-tetramethyl-1, 3, 4, 5, 6, 12b-hexahydro-2H-2, 4a-arbor methyl benzacridine-7-yl)-1, 1'-
biphenyl)-1, 2, 4, 5-tetramethyl-1, 3, 4, 5 The compound ABP-BBT can specifically recognize hydrazine, the
detection limit of hydrazine reaches 7.5 nM, and the compound ABP-BBT has a good application prospect.