SU740766A1 - Dichloromethyltetrabenzoporphin alkylaminosubstituted derivatives possessing properties of dispersed dyes and dyes for polyamide fiber in process of its synthesis - Google Patents

Description

Leu is their resistance to high teplperators, which allowed them to be used for dyeing polyamide fiber during the synthesis of the latter. In addition, they successfully stain synthetic fibers as disperse dyes to form a stable dispersion due to the presence of alkyl radicals. Example 1, 1 g of dichloromethyl tetrabeneporphine is mixed in a flask equipped with a reflux condenser with 80 ml of butylamine. The reaction mixture of Er is heated before and at this temperature while stirring for 10 hours. Then, excess butyls 1a are distilled off with steam. The remaining reaction product is filtered, washed with water, crystallized from benzene. The resulting di (butylaminomethyl) tetrabekzoporfin is subjected to element analysis. Calculated,%; C 70, 8; H 6.4; N 12.3. C, bN. : C, 69.5; H 6.2; It was found, N 11.8 Example 2, 1 g of dichloromethyl tetrabenzoporphine was carefully rubbed with C 30 ml of ethanolamine, then another 40 ml was added and the mixture was kept for 10 hours at boiling. At the end of the exposure, the mixture is poured into 100 gdl ohl Zhdnogo saturated solution of cooked salt. The precipitate is filtered, washed with ice water, dried and purified by crystallization from alcohol. The resulting di (ethanolaminomethyl) tetrabenzoporphy is subjected to elementary analysis,. Vycholevo, Q: C 76.7; H 5.4;

.N., BNABO. C 75p8; H 5.2;

Found,%.

Example 3. 1g of dichloromethyl-tetrabenzoporphine is heated with 1 ,, 3 g of octadecylamine in 30 ml of pyridine slightly weakening pyridine for 8 hours. After exposure to the extract, pyridine is distilled off, the precipitate is filtered off, washed with water and crystallized from alcohol.

The resulting di (octadecylaminomethyl) tetrabenzoporfin is subjected to elemental analysis.

Calculated,%: C 82.8; H 9.3; N 7.7.

 81.3; H 8fi

Found

N 6,8,

Dyeing during the synthesis of polyamide fiber.

A precise sample (10 g) of the cleared and dried caprol aktam is placed in a flask with an encrypted stopper and the necessary quantities of water and dye {0.3% of the weight of caprolactam) are added to it by weight.

Butylaminosubstituted tetrabekzo porphyk

Ethanolamine tetrabenzoporfin a

The floor The samples have intense color and high strength, and the proposed dyes are original and can be used in the dyeing of synthetic fibers as disperse dyes and in the dyeing process of polyamide fiber synthesis. The mixture was melted at 80 ° C, mixed thoroughly and poured into glass ampoules. . Ampoules vacuum and sealed. For polymerization, the ampoules are placed in a thermostat of a special design, in which during the reaction the temperature is maintained at 255 ° C with an accuracy of ± .0.3 ° C. At the end of the polymerization reaction, the tubes are rapidly cooled and broken. The resulting polymers are used to measure the viscosity index and form polyamide fiber yarns. The polymers obtained give viscosity coefficients close to production (2.3–2.6) and well-moldable fiber. Dyeing nylon fiber. Dyeing of caprone is carried out from an aqueous suspension, which is prepared by mashing the dye, taken in an amount of 2-3% by weight of the fabric, with 2-3 drops of NF dispersant, then diluted with water and the dyebath is adjusted to 6 short drops. mi acetic acid. The bath module is 1:50 ,, The temperature is raised to 70 ° C and painted at this temperature for 30-40 minutes, then for 1 hour. At the end, the fabric is washed with hot, cold water and suidate. The dyed fabric is tested for strength according to GOST 9733-61. The strength values of the colors to physicochemical effects on nylon are given in the table.

Claims (1)

1. Zinstead R. p., Frederick T, J. of Chem. Soc. 1950, 11, p. 2975.