Synthesis method of multi-ureido tripodal type functional monomer molecule with nitrogen as center
A technology of functional monomers and synthesis methods, applied in chemical instruments and methods, preparation of urea derivatives, preparation of organic compounds, etc., can solve the problems of limited types of functional monomers and low recognition selectivity
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Embodiment 1
[0027] Dissolve tris(2-aminoethyl)amine (1mmol, 146mg) in 10mL of acetonitrile solution in a round bottom flask, and add 3-isopropenyl-α,α-dimethylbenzyl in a constant pressure dropping funnel Hydroxyl isocyanate (3mmol, 603mg) was dissolved in 10mL of acetonitrile solution, and cooled with magnetic sub-stirring for 10min under the condition of ice-water bath;
[0028] Slowly add the solution of 3-isopropenyl-α,α-dimethylbenzyl isocyanate dissolved in acetonitrile dropwise to the solution of tris(2-aminoethyl)amine dissolved in acetonitrile under the condition of ice-water bath , the dropping time is 20min;
[0029] After the dropwise addition was completed, the reaction system was reacted at room temperature for 4 hours. After the reaction was completed, separation and purification were carried out, and the reaction solution was removed by a rotary evaporator to obtain a white solid. The obtained solid was washed 3 times with 20 mL of dichloromethane , dried in vacuum at a t...
Embodiment 2
[0032] Dissolve tris(2-aminoethyl)amine (1mmol, 146mg) in 10mL of acetonitrile solution in a round bottom flask, and add 3-isopropenyl-α,α-dimethylbenzyl in a constant pressure dropping funnel Hydroxyl isocyanate (3.2mmol, 643mg) was dissolved in 10mL of acetonitrile solution, and cooled with magnetic sub-stirring for 10min under the condition of ice-water bath;
[0033] Slowly add the solution of 3-isopropenyl-α,α-dimethylbenzyl isocyanate dissolved in acetonitrile dropwise to the solution of tris(2-aminoethyl)amine dissolved in acetonitrile under the condition of ice-water bath , the dropping time is 20min;
[0034] After the dropwise addition was completed, the reaction system was reacted at room temperature for 4 hours. After the reaction was completed, separation and purification were carried out, and the reaction solution was removed by a rotary evaporator to obtain a white solid. The obtained solid was washed 3 times with 20 mL of dichloromethane , dried in vacuum at a...
Embodiment 3
[0037] Dissolve tris(2-aminoethyl)amine (1mmol, 146mg) in 10mL of acetonitrile solution in a round bottom flask, and add 3-isopropenyl-α,α-dimethylbenzyl in a constant pressure dropping funnel Hydroxyl isocyanate (3.5mmol, 703mg) was dissolved in 10mL of acetonitrile solution, and cooled with magnetic sub-stirring for 10min under the condition of ice-water bath;
[0038] Slowly add the solution of 3-isopropenyl-α,α-dimethylbenzyl isocyanate dissolved in acetonitrile dropwise to the solution of tris(2-aminoethyl)amine dissolved in acetonitrile under the condition of ice-water bath , the dropping time is 20min;
[0039] After the dropwise addition was completed, the reaction system was reacted at room temperature for 4 hours. After the reaction was completed, separation and purification were carried out, and the reaction solution was removed by a rotary evaporator to obtain a white solid. The obtained solid was washed 3 times with 20 mL of dichloromethane , dried in vacuum at a...
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