LIQUID DERIVATIVES OF BENZISOQUINOLINE Russian patent published in 2004 - IPC

FIELD: organic chemistry.

SUBSTANCE: invention relates to compounds of the formula (I):

wherein R¹ and R² are taken independently among the group consisting of branched alkyl groups comprising 7-8 carbon atoms and alkyloxyalkyl groups comprising from 4 to 15 carbon atoms. Invention proposes the composition for staining oily or lubricant composition comprising inert organic solvent with boiling point above 65 C and coloring component wherein a coloring component consists of one or some compound of the formula (I). Organic solvent is taken among the group consisting of aromatic hydrocarbons. Also, invention proposes coolant lubricating material and compound of the formula (I). Invention provides preparing derivatives of benzisoquinoline as fluorescent dyes added to lubricant materials for detection of leakages.

EFFECT: valuable properties of compounds.

19 cl, 10 ex