Hydrochloric Acid → Sodium 2-(2-hydroxyethyl)amino-5-nitrobenzenesulphinate

HRID 482956Notes

Reaction equation

HRID 482956 reaction equation
Cl[C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][C:3]=1[S:11]([O-:13])=[O:12].[Na+:14].[CH2:15]([CH2:17][NH2:18])[OH:16].Cl>O>[OH:16][CH2:15][CH2:17][NH:18][C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][C:3]=1[S:11]([O-:13])=[O:12].[Na+:14]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 700EthanolamineHCID 111522Benzenesulfinic acid, 2-chloro-5-nitro-, sodium salt (1:1)

Product 1

HCID 20244457Sodium 2-(2-hydroxyethyl)amino-5-nitrobenzenesulphinate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

122 g of sodium 2-chloro-5-nitrobenzenesulphinate are kneaded together with 150 g of ethanolamine, and the mixture is gradually heated to 100° C. After 30 minutes at 100° C. 500 ml of water are added, the reaction solution is neutralised with hydrochloric acid, and the sodium 2-(2-hydroxyethyl)amino-5-nitrobenzenesulphinate is isolated as above, by salting out.

Sources & evidence

ORD record
ord-2abea71c554d4ade8c590de5913dfe09
Source dataset
uspto-grants-1986_03
Patent number
US04577015

Reaction notes

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