United States Patent Office Patented Mar
3,238,221 United States Patent Office Patented Mar. 1, 1966 1. 2 3,238,221 Aryl Sulfonamides suitable for the production of the TETRAAZAPORPHINE DYESTUFFS dyestuffs of Formula I are, for example, the following: Peter Schnitz, Cologne-Stammheim, and Detlef Delfs, NE Opiaden, Germany, assignors to Farbenfabriken Bayer Aktiengeseischaft, Leverkusen, Germany, a corporation 5 of Germany No Drawing. Filed June 5, 1961, Ser. No. 114,619 (D-on Claims priority, application Germany, June 11, 1960, NH F 31,440 3 Claims. (CI. 260-314.5) 10 : {D-onen The invention relates to new tetraazaporphine dye NH stuffs; more particularly it relates to tetrazaporphine dye stuffs of the general formula / 15 {D-onotor NE A x-N-AR -) (I) In this general formula A represents the residue of a tetraazaporphine dyestuff, in particular of a phthalo (D-Ionicator cyanine dyestuff which may be free of metal or which 20 NE may contain metal atoms, X stands for -CH2-, -SO or -CO-, R means hydrogen, a lower alkyl or hydroxy Substituted lower alkyl radical, Ar represents a residue of the benzene, diphenyl, diphenylamine, diphenyloxide NE 25 CHs or naphthalene series and Y stands for an optionally sub / stituted Sulfonamido or sulfonylamino group, in stands SONEICHN for an integer from 1 to 8. A particularly valuable class of dyestuffs among the Yo Hs compounds of the Formula I are those in which the NH Sulfonamido group Y corresponds to the general formula 30 -SO-NEI-R1-OSO32. (II) {D-onent or -so-N-R-R-R-oso.2 (III) NEI. R2 35 wherein R means an alkylene bridge having 2 or 3 car {Donounction bon atoms between -NH- and -OSOZ, Z is hydro CH3 gen or an alkali metal cation, R2 is a lower alkyl group, N CH4OH Rs represents an alkylene group having 2 to 3 carbon 40 / atoms between SO2NEICHN N CEO NH, and -R4 RA stands for -O-, -S- or 45 { X-so-HN-O In these aniline sulfonamides the sulfonamide group may R6 being hydrogen, R5-OSOZ or a lower alkyl group Stand in o- and preferably in the m- or p-position to the and R5 is a lower alkylene group having 2 to 3 carbon amino group.
[Show full text]