Benzenamin, 2,2′-(1,2-ethanediylbis(oxy))bis-
2-[2-(2-aminophenoxy)ethoxy]phenylamine
CAS: 52411-34-4
Molecular Formula: C14H16N2O2
Benzenamin, 2,2′-(1,2-ethanediylbis(oxy))bis- - Names and Identifiers
| Name | 2-[2-(2-aminophenoxy)ethoxy]phenylamine |
| Synonyms | Bis(2-Aminophenoxy)ethane BIS-(2-AMINOPHENOXY)-ETHANE 1,2-Di(o-aminophenoxy)ethane 1,2-Bis(o-aminophenoxy)ethane 1,2-BIS(2-AMINOPHENOXY) ETHAN 1,2-BIS-(O-AMINOPHENOXY)ETHANE 1,2-Bis-(2-aminophenoxy)-ethane 2,2'-[ethane-1,2-diylbis(oxy)]dianiline 2-[2-(2-aminophenoxy)ethoxy]phenylamine 2,2'-diaminoethylene glycol diphenyl ether 1,2,7,8-Dibenzo-1,8-diamino-3,6-dioxaoctane Benzenamin, 2,2′-(1,2-ethanediylbis(oxy))bis- 2,2'-[1,2-Ethanediylbis(oxy)]bis[benzenamine] |
| CAS | 52411-34-4 |
| EINECS | 1312995-182-4 |
| InChI | InChI=1/C14H16N2O2/c15-11-5-1-3-7-13(11)17-9-10-18-14-8-4-2-6-12(14)16/h1-8H,9-10,15-16H2 |
Benzenamin, 2,2′-(1,2-ethanediylbis(oxy))bis- - Physico-chemical Properties
| Molecular Formula | C14H16N2O2 |
| Molar Mass | 244.29 |
| Density | 1.204±0.06 g/cm3(Predicted) |
| Melting Point | 131-132 °C |
| Boling Point | 452.9±30.0 °C(Predicted) |
| Flash Point | 253.5°C |
| Vapor Presure | 0-0.17Pa at 25-129.5℃ |
| Appearance | powder to crystal |
| Color | White to Light yellow to Light orange |
| pKa | 4.56±0.10(Predicted) |
| Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
| Refractive Index | 1.631 |
Benzenamin, 2,2′-(1,2-ethanediylbis(oxy))bis- - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| HS Code | 29215900 |
Benzenamin, 2,2′-(1,2-ethanediylbis(oxy))bis- - Reference Information
| LogP | 2.5 at 40℃ and pH6-7 |
| surface tension | 72.1mN/m at 16mg/L and 20 ℃ |
| use | 2,2 '-diaminoethylene glycol diphenyl ether is a white crystalline powder with a melting point of 130-132 ℃. It is mainly used for diazotized components synthesized by high-grade organic pigment yellow C.I.Pigment Yellow 180. for synthetic pigment yellow 180 |
| preparation | method 1. a preparation method of 2,2 '-diaminoethylene glycol diphenyl ether. the synthesis route is: 45 g1,2-bis (2-nitrophenoxy) ethane, 1.3g nickel catalyst, 1.8g activated carbon and 600ml ethanol are added to a 1L high-pressure reactor. After replacing with nitrogen, start stirring and raise the temperature, and start to introduce hydrogen. The ventilation pressure is 0.4MPa and the set temperature is 95 ℃. After the pressure is kept for 20-30min and no longer drops, the hydrogenation reaction is finished, and the stirring and cooling are stopped to 65 ℃ for thermal filtration. The separated catalyst and activated carbon are sheathed to the next batch. The filtrate is cooled to 30 ℃, the filter cake is dried at 60 ℃, and the filtrate is applied to the next batch. 90.03% molar yield, 99.09% purity, melting point 130.8-131.4 ℃. Methods 2. 60 g1, 2-bis (2-nitrophenoxy) ethane, 51.7g of sodium hydrosulfide solution and 120g of water were added to a 1L high-pressure reactor. After replacing with nitrogen, start stirring and raise the temperature. The set temperature is 130 ℃, the pressure is 0.2MPa, the temperature is kept for 5h, and the reaction is over. After the reaction is completed, pressure discharge and temperature reduction are carried out, and filtration is carried out at 30-35 ℃ to obtain crude products. The crude product was dissolved in 300ml of water as solvent, dissolved in hydrochloric acid, refined in liquid alkali, and dried to obtain 44.4g of product. The molar yield is 91.0%, the purity is 99.65%, and the melting point is 131-131.4 ℃. |
Last Update：2024-04-10 22:43:14
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