2,2′-[1,2-Ethanediylbis(oxy)]bis[benzenamine]

Off-White Crystalline Solid

To a 1 L autoclave was charged 60 g of 1, 2-bis (2-nitrophenoxy) ethane, 51.7g mass fraction of 26percent sodium hydrosulfide solution, 120 g of water.After completion of the replacement with nitrogen, Turn on stirring warming, The set temperature was 130 ° C, Pressure 0.2MPa, Insulation 5h, After completion of the reaction, the pressure is reduced and the temperature is lowered, and the mixture is filtered at 30 to 35 ° C to obtain a crude product. The crude product was dissolved in 300ml of water and dissolved in hydrochloric acid. The product was 44.4g after drying. The yield was 91.0percent, purity 99.65percent .Iron powder (3.36 g, 0.06 mol), concentrated hydrochloric acid (0.2 mL), and anhydrous ethanol (10 mL) were added into a dried three-necked flask equipped with a magnetic stirrer. When the mixture was heated to boiling, 2 (3.04 g, 0.01mol) was added in three portions. The mixture was refluxed for 4 h, and then made alkaline to litmus by addition of 15percent alcoholic potassium hydroxide solution, the iron powder was removed by filtration afterwards. Into the filtrate, 6 mol L-1 sulfuric acid was added and white precipitate was obtained. After filtration, the precipitate was dissolved in 40 mL of warm water and made alkaline to pH = 8 with saturated sodium hydroxide solution. The generated light yellow solid was collected and recrystallized in MeOH to give white solid 3.

Used for synthetic pigment yellow 180

Molecular Weight:244.29
XLogP3:2.2
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:5
Exact Mass:244.121177757
Monoisotopic Mass:244.121177757
Topological Polar Surface Area:70.5
Heavy Atom Count:18
Complexity:214
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes