methyl 3-[bis(2-hydroxyethyl)amino]propanoate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 20 to 30° C., acetic anhydride was added to a mixture of 9.29 g of N,N-bis(2-hydroxyethyl)-2-(methoxycarbonyl)ethylamine, 12.8 g of triethylamine, 50 mg of 4-dimethylaminopyridine and 50 ml of THF and the resulting mixture was stirred for 20 hours. Water was added to terminate the reaction. The reaction mixture was extracted with ethyl acetate. The organic layer was then washed with water and dried over anhydrous sodium sulfate. After concentration under reduced pressure, the residue was purified by distillation under reduced pressure, whereby 13.2 g of N,N-bis(2-acetoxyethyl)-2-(methoxycarbonyl)ethylamine was obtained (boiling point: 118 to 123° C./21 Pa, yield: 99%). to terminate the reaction The reaction mixture was extracted with ethyl acetate The organic layer was then washed with water dried over anhydrous sodium sulfate After concentration under reduced pressure the residue was purified by distillation under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 20 to 30° C., 9.01 g of methyl acrylate was added to 10.0 g of diethanolamine. The resulting mixture was allowed to stand for 20 hours. The reaction mixture was concentrated under reduced pressure, whereby N,N-bis(2-hydroxyethyl)-2-(methoxycarbonyl)ethylamine was obtained (yield: 98%). The reaction mixture was concentrated under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 20 to 30° C., 9.01 g of methyl acrylate was added to 10.0 g of diethanolamine. The resulting mixture was allowed to stand for 20 hours. The reaction mixture was concentrated under reduced pressure, whereby N,N-bis(2-hydroxyethyl)-2-(methoxycarbonyl)ethylamine was obtained (yield: 98%). The reaction mixture was concentrated under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 20 to 30° C., acetic anhydride was added to a mixture of 9.29 g of N,N-bis(2-hydroxyethyl)-2-(methoxycarbonyl)ethylamine, 12.8 g of triethylamine, 50 mg of 4-dimethylaminopyridine and 50 ml of THF and the resulting mixture was stirred for 20 hours. Water was added to terminate the reaction. The reaction mixture was extracted with ethyl acetate. The organic layer was then washed with water and dried over anhydrous sodium sulfate. After concentration under reduced pressure, the residue was purified by distillation under reduced pressure, whereby 13.2 g of N,N-bis(2-acetoxyethyl)-2-(methoxycarbonyl)ethylamine was obtained (boiling point: 118 to 123° C./21 Pa, yield: 99%). to terminate the reaction The reaction mixture was extracted with ethyl acetate The organic layer was then washed with water dried over anhydrous sodium sulfate After concentration under reduced pressure the residue was purified by distillation under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 20 to 30° C., 9.01 g of methyl acrylate was added to 10.0 g of diethanolamine. The resulting mixture was allowed to stand for 20 hours. The reaction mixture was concentrated under reduced pressure, whereby N,N-bis(2-hydroxyethyl)-2-(methoxycarbonyl)ethylamine was obtained (yield: 98%). The reaction mixture was concentrated under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 10.5 grams of diethanolamine and 17.2 grams of methyl acrylate is heated under reflux for 24 hours. The excess methyl acrylate is removed under reduced pressure and the residue is purified using flash chromatography to afford the title compound as a thick oil. is heated under reflux for 24 hours The excess methyl acrylate is removed under reduced pressure the residue is purified

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 20 to 30° C., acetic anhydride was added to a mixture of 9.29 g of N,N-bis(2-hydroxyethyl)-2-(methoxycarbonyl)ethylamine, 12.8 g of triethylamine, 50 mg of 4-dimethylaminopyridine and 50 ml of THF and the resulting mixture was stirred for 20 hours. Water was added to terminate the reaction. The reaction mixture was extracted with ethyl acetate. The organic layer was then washed with water and dried over anhydrous sodium sulfate. After concentration under reduced pressure, the residue was purified by distillation under reduced pressure, whereby 13.2 g of N,N-bis(2-acetoxyethyl)-2-(methoxycarbonyl)ethylamine was obtained (boiling point: 118 to 123° C./21 Pa, yield: 99%). to terminate the reaction The reaction mixture was extracted with ethyl acetate The organic layer was then washed with water dried over anhydrous sodium sulfate After concentration under reduced pressure the residue was purified by distillation under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 20 to 30° C., 9.01 g of methyl acrylate was added to 10.0 g of diethanolamine. The resulting mixture was allowed to stand for 20 hours. The reaction mixture was concentrated under reduced pressure, whereby N,N-bis(2-hydroxyethyl)-2-(methoxycarbonyl)ethylamine was obtained (yield: 98%). The reaction mixture was concentrated under reduced pressure