Use of benzaldehydes to mark hydrocarbons

Details Use of benzaldehydes to mark hydrocarbons Use of benzaldehydes to mark hydrocarbons

C - Chemistry, Metallurgy

10

L

C10L 1/00 (2006.01) C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/185 (2006.01) C10L 1/22 (2006.01) C10L 1/223 (2006.01) C10L 1/232 (2006.01) C10L 1/233 (2006.01) C10M 171/00 (2006.01) G01N 31/22 (2006.01) G01N 33/28 (2006.01) C10L 1/16 (2006.01)

Patent

CA 2195019

The invention relates to the use of benzaldehydes of the formula (I), in which ring A can be benzo-anellated and R1, R2 and R3 are hydrogen, hydroxy, C1-C15 alkyl, C1-C15 alkoxy, cyano, nitro or a radical of the formula NR4R5 or COOR6, in which R4 is hydrogen or possibly substituted C1-C15 alkyl, R5 is possibly substituted C1-C15 alkyl or a radical of the formula L-NX1X2, in which L is C2- C8 alkylene and X1 and X2 are mutually independently C1-C6 alkyl or, together with the nitrogen atom bonding them, a heterocyclic radical, and R6 is hydrogen, possibly substituted C1-C15 alkyl or a radical of the formula L- NX1X2, in which L, X1 and X2 have the above meanings, as marking agents for hydrocarbons, a process for detecting these benzaldehydes in hydrocarbons and hydrocarbons containing the above benzaldehydes.

L'invention concerne l'utilisation, comme agents de marquage d'hydrocarbures, de benzaldéhydes de la formule (I), dans laquelle le composé cyclique A peut être benzon-annelé et R?1¿, R?2¿ et R?3¿ désignent hydrogène, hydroxy, alkyle C¿1?-C¿15?, alcoxy C¿1?-C¿15?, cyano, nitro ou un reste de la formule NR?4¿R?5¿ ou COOR?6¿, R?4¿ désignant hydrogène ou alkyle C¿1?-C¿15? éventuellement substitué, R?5¿ désignant alkyle C¿1?-C¿15? éventuellement substitué ou un reste de la formule L-NX?1¿X?2¿, dans laquelle L désigne alkylène C¿2?-C¿8? et X?1¿ et X?2¿ désignent, indépendamment l'un de l'autre, alkyle C¿1?-C¿6? ou conjointement avec l'atome d'azote qui les lie, un reste hétérocyclique, et R?6¿ désignant hydrogène, alkyle C¿1?-C¿15? éventuellement substitué ou un reste de la formule L-NX?1¿X?2¿, dans laquelle L, X?1¿ et X?2¿ correspondent chacun à la définition donnée ci-dessus. L'invention concerne en outre un procédé de détection de ces benzaldéhydes dans des hydrocarbures, ainsi que des hydrocarbures qui contiennent les benzaldéhydes précités.

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