Sodium dithionate → HCID 13491969, Verbindung
Reaktionsgleichung
[Cl:1][C:2]1[CH:3]=[C:4]([N+:21]([O-])=O)[C:5]([OH:20])=[C:6]([CH2:8][C:9]2[CH:14]=[C:13]([Cl:15])[CH:12]=[C:11]([N+:16]([O-])=O)[C:10]=2[OH:19])[CH:7]=1.S(S([O-])(=O)=O)([O-])(=O)=O.[Na+].[Na+]>CO.O>[NH2:16][C:11]1[C:10]([OH:19])=[C:9]([CH2:8][C:6]2[CH:7]=[C:2]([Cl:1])[CH:3]=[C:4]([NH2:21])[C:5]=2[OH:20])[CH:14]=[C:13]([Cl:15])[CH:12]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a suspension of 36.3 g (0.1 mole) of 1,1-bis(5-chloro-2-hydroxy-3-nitrophenyl)methane of Example 19 in 300 ml of methanol-water (1:1) was added 145 g (0.4 mole) of sodium dithionate. The mixture was stirred for 4 hours and then filtered. The solid was dissolved in 22 g of ethyl acetate and washed with water, dried over magnesium sulfate and concentrated to yield 16.9 g of product of m.p. 212°-215° C.