Ethylamine → Methyl N-ethyl-beta-alaninate

Temperatur

-20 °C

Methyl acrylate (5.22 g, 60.6 mmol) is dissolved in methanol (20 mL) and cooled to −20° C. Ethylamine (2 M in tetrahydrofuran, 47 mL, 94 mmol) is added via addition funnel and the reaction is allowed to stir at −20° C. for 2 hours. Solvents were then removed in vacuo and the residue is distilled under reduced pressure to afford the title compound as a colorless liquid (2.41 g, 30% yield). 1H NMR (CDCl3) 1.11 (t, 3H, J=7.02 Hz), 2.53 (t, 2H, J=6.58 Hz), 2.66 (q, 2H, J=7.02 Hz), 2.89 (t, 2H, J=6.58 Hz), 3.69 (s, 3H).

1. customSolvents were then removed in vacuo
2. distillationthe residue is distilled under reduced pressure

ORD-Eintrag

ord-763e89253a5846439d85d72ba124a2f8

Quelldatensatz

uspto-grants-2013_01

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08362063B2