Potassium Hydroxide → HCID 86735967, compound

https://huagongshe.com/reaction/2420192

Participants

Role	Name	HCID	Charge
Reactant	Potassium Hydroxide	HCID 14797	—
Reactant	2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-4-[[(4-methylphenyl)sulfonyl]amino]-9,10-dioxo-	HCID 67203	—
Reactant	Benzenesulfonamide, N-(4-amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthracenyl)-	HCID 112289	—
Reactant	HCID 3017764	HCID 3017764	—
Reactant	Benzenesulfonamide, N-(4-amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthracenyl)-2-methyl-	HCID 3085535	—
Solvent	Methanol	HCID 887	—
Product	HCID 86735967	HCID 86735967	—

Reaction Steps

To a homogenous mixture of 225 g. potassium hydroxide in 450 g. methanol cooled to 60°-70° C is added 87 g. of the mixed potassium salts of 1-amino-4-benzenesulfonamido-2-anthraquinonesulfonic acid and 1-amino-4-p-toluenesulfonamido- 2-anthraquinone sulfonic acid. After holding this mixture for about 2 hours at 75°-80° C, the reaction mass is diluted with 750 g. water, filtered at less than 40° C, washed free of alkali with warm and then hot water and the product recovered as a red presscake. There is obtained 65 g. of product calculated on a dry basis, consisting of a mixture which is approximately 48% 1-amino-2-methoxy-4-toluenesulfonamidoanthraquinone and approximately 52% 1-amino-2-methoxy-4-benzenesulfonamidoanthraquinone. The mixture when dispersed in the usual manner dyes polyester textile materials, such as Dacron, red shades which are considerably stronger and brighter than comparable dyeing using dispersions of either of the individual components.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US04110072
Source dataset	uspto-grants-1978_08
ORD ID	ord-d2d31ee9414d482da941d33ed84ce93d
Source note	uspto-grants-1978_08