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23651-62-9

ethyl N-ethyl-beta-alaninate synthesis

4synthesis methods
-

Yield:23651-62-9 96.5%

Reaction Conditions:

in ethanol;water at 20; for 2.5 h;

Steps:

14.1 Step 1: Synthesis of intermediate ethyl 3-(ethylamino)propionate

65% aqueous ethylamine solution (29.1 g, 419.51 mmol, 1.4 eq., 65%) was dissolved in ethanol (100 mL).
Then the solution was added with a solution of ethyl acrylate (30.00 g, 299.65 mmol, 1.0 eq.) in ethanol (20 mL) dropwise (1.5 h).
After addition, the mixture was stirred at room temperature for 1 h. The reaction solution was concentrated to give a product (42.0 g, yield: 96.5%).

References:

EP3892621,2021,A1 Location in patent:Paragraph 0335-0337