3,3'-Dihydroxy-4,4'-diaminodiphenylmethane synthesis
- Product Name:3,3'-Dihydroxy-4,4'-diaminodiphenylmethane
- CAS Number:22428-30-4
- Molecular formula:C13H14N2O2
- Molecular Weight:230.26
1223-20-7
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22428-30-4
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Yield:22428-30-4 80.5%
Reaction Conditions:
with hydrogenchloride;acetic acid for 12 h;Reflux;
Steps:
5
60.00 g (0.232 mol) of reactant (h-1), 800 mL of acetic acid,Hydrochloric acid (47%) 800 mL was charged into a 3 L flask equipped with a thermometer, a cooling tube, and a stirrer.Stirring is carried out while heating to form a reflux state.After reacting for 12 hours under reflux, it was air-cooled to room temperature.After neutralizing the reaction solution with a 20% aqueous sodium hydroxide solution,Extraction was carried out with 600 mL of ethyl acetate. It was washed three times with 200 mL of ion-exchanged water, sodium sulfate was added, and after drying, it concentrated under reduced pressure.The reactant (h-2) was obtained in 43.01 g (yield 80.5%).
References:
TW2018/40532,2018,A Location in patent:Paragraph 0192; 0194; 0195
