Anthrapyridone compound or a salt thereof, magenta ink...

C - Chemistry – Metallurgy – 09 – B

Patent

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Details

C09B 5/14 (2006.01) B41J 2/01 (2006.01) B41M 5/00 (2006.01) C07D 221/18 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2713140

The present invention relates to a novel anthrapyridone compound represented by the following formula (1) or a salt thereof: (see formula 1) [wherein, R1 represents a hydrogen atom, an alkyl group or the like, R2 represents a hydrogen atom or a methoxy group and R3 represents an unsubstituted or substituted C5-C12 alkyl group, an unsubstituted or substituted aryl group, or an unsubstituted or substituted heteroaryl group, respectively; and with regard to the substitution positions of -SO2R3 and -SO3H whose substitution position are not specified and the both of which the benzene ring has thereon, one of their substitution positions is the para-position and the other thereof is the ortho-position to the substitution position of the nitrogen atom by which said benzene ring is substituted], and the compound of the present invention or a salt thereof has a hue which possesses high vividness suitable for inkjet recording, and provides a magenta coloring matter having higher fastnesses on recorded matter and excellent storage stability.

Cette invention concerne un nouveau composé d'anthrapyridone représenté par la formule (1) ou son sel. Le composé ou son sel permettent la formation d'un colorant magenta ayant une teinte de haute définition appropriée pour l'enregistrement à jet d'encre et une excellente stabilité au stockage. Une matière enregistrée avec ce colorant magenta présente une grande solidité. [Dans la formule, R1 représente un atome d'hydrogène, un groupe alkyle ou semblable; R2 représente un atome d'hydrogène ou un groupe méthoxy; R3 représente un groupe alkyle en C5 à C12 substitué ou non, un groupe aryle substitué ou non, ou un groupe hétéroaryle substitué ou non; et l'une des positions de substitution de -SO2R3 et de -SO3H sur un cycle benzène, lesdites positions étant non spécifiées, est la position para et la position ortho respectivement par rapport à la position de substitution d'un atome d'azote sur le cycle benzène.]

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