DE79972C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 22: dyes, varnishes, lacquers.

the same.

Tenth addition to patent JU 66361 of March 12, 1892.

Patented in the German Empire on June 7, 1894. Longest duration: March 11, 1907.

If in the process described in claim 1 of patent specification no. 71665, consisting in the condensation of oxynaphthoquinonanil with monomethyl-o-tolylenediamine, the latter is replaced by other monoalkylated o-diamines such as monoethyl-o-tolylenediamine or the corresponding alkyl derivatives of the o Phenylenediamine, the corresponding homologues of indulin C. _2i H ₁₉ N _{B are obtained} . The thus of monoethyl-o-toluene diamine produced a phenyl -beta-äthyleurhodin of which is Indulin C _2i H _lg N _3, the a-Phenylß-methyleurhodin patent specification no. 66361, distinguished by a somewhat bluer shade is different in the same sense the lower homologue of α, -phenyl-ß-äthyleurhodin of the a-phenyl-3-methyleurhodin, the indulin C. _2S H ₁₇ N _{3 of} the patent specification No. 71666, which arises from monoethyl-o-phenylenediamine.

Monosulfonic acids of these dyes are also obtained if one in the claim 2. the aforementioned patent process described, consisting in the condensation of Oxynaphthoquinonanilsulfonic acid with monomethylo-toluenediamine, the latter is replaced by the monoalkylated o-diamines given above; these sulfonic acids are like the sulfonic acid of the Patent No. 71665 is sparingly soluble in water, you will find more water-soluble for the preparation Sulfonic acids use.

Replaced also in the process of patent specification No. 79540, consisting in condensation of oxynaphtoquinonimide with monomethyl-o-toluenediamine, the latter by the monoethyl-o-toluenediamine or by the corresponding monoalkylated ο-phenylenediamines, one obtains the corresponding am Azine nitrogen alkylated Eurhodine, namely the ß-Ethyleurhodin respectively. the lower homologues of ß-methyl- and ß-ethylleurhodine, their composition by the following Expressed formulas:

HN

Alkyl

/ S-Alkyleurhodine from Oxynaphthoquinonimide
and monoalkyl-o-toluenediamine.

HNJ

Alkyl

/ 3-alkyleurhodine (lower homolog)

Oxynaphtoquinonimide and monoalkyl-o-

phenylenediamine.

The resulting from monoethyl-o-toluylenediamine ß-Ethyleurhodin is identical to that dye described in Patent No. 79960, which is derived from β-methyleurhodine (Patent specifications No. 77226 and No. 79540) differs by a slightly bluer shade.

Of the dyes formed from monoalkylated o-phenylenediamines, the one is off Monomethyl-o-phenylenediamine formed - the lower homologue of ß-methyleurhodins of Patent Specification No. 77226 - not significantly different from the latter, and it is also true the dye resulting from monoethyl-o-phenylenediamine with that from the corresponding monoalkylated o-toluenediamine produced in its essential properties.

Claims (3)

Patent-to sayings: ι. ■ Method for the representation of homologues of the industry described in Patent No. 66361 ; dulins C _2i H _M N _n , consisting in that, according to the process of patent no -Phenylenediamine condensed. 2. Process for the preparation of homologues of the sparingly water-soluble sulphonic acid of indulin C ₂₄ / T ₁₉ 2V ₃ , consisting in using the oxynaphthoquinonanilsulphonic acid instead of monomethyl-0-tolylenediamine according to the process of patent no condensed here with monoethyl-otolylenediamine or with the corresponding mono-alkylated derivatives of o-phenylenediamine. 3. Process for the preparation of ß-ethylleurhodine and the lower homologues of ß-methyleurhodine and ß-ethyleurhodine, consisting in that one after Compliance with the process protected by claim 1 of patent no. 71665 instead of the oxynaphthoquinonanil used there, the oxynaphthoquinonimide with monoethyl-o-toluenediamine or with Monomethyl or monoethyl-o-phenylenediamine condenses.