Compound useful in detecting ions and method of preparing it

Details Compound useful in detecting ions and method of preparing it Compound useful in detecting ions and method of preparing it

C - Chemistry, Metallurgy

07

C

260/396.5

C07C 49/67 (2006.01) C07C 49/747 (2006.01) C07C 51/347 (2006.01) C07C 57/30 (2006.01) C07C 59/84 (2006.01) G01N 33/84 (2006.01)

Patent

CA 1213601

ABSTRACT A novel compound is disclosed having the struc- ture Image (1) in which R is H or lower alkyl, R* is intermediate alkyl, and X is halogen or pseudohalogen. Also disclosed is a method for preparing the compound, the method including the steps of reacting (intermediate alkyl)benzene (I) with succinic anhydride to form (intermediate alkyl)-benzoylpropionic acid (II), successively reducing and dehydrating (II) to form 7- (intermediate alkyl)-1-tetralone (III), alkylating (III) to form 2-hydroxy(lower alkylidene)-7-(inter- mediate alkyl)-1-tetralone (IV), acrylating (IV) to form 2-acyloxy(lower alkylidene)-7-(intermediate alkyl)-1-tetralone (V), reacting (V) in the presence of an cycloalkene to form 7(intermediate alkyl)-2- (lower alkyl)-1-naphthol (VI), reacting (VI) with a 2,6-dihaloquinone-4-haloimide to form the compound (I), and isolating it. The novel compounds are use- ful as reporter substances in the measurement of ions, particularly in aqueous solutions.

452408

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