Acta Cryst. (2008). E64, o1051  [ doi:10.1107/S160053680800891X ]

(Z)-Methyl 3-(4-ethoxyanilino)but-2-enoate

L.-P. Zhang, C.-H. Ni, Z.-Y. Li and W. Zhang

Abstract: The title compound, C₁₃H₁₇NO₃, was synthesized from methyl 3-oxobutanoate and 4-ethoxybenzenamine using a catalytic amount of InBr₃ under solvent-free conditions. The 3-aminobut-2-enoic acid methyl ester group is planar and forms a dihedral angle of 83.4 (1)° with the benzene ring. The ethoxy group is slightly twisted away from the benzene ring [dihedral angle = 13.8 (1)°]. An intramolecular N-HO hydrogen bond generating an S(6) ring is observed. Molecules are linked into a chain along the b axis by intermolecular C-HO hydrogen bonding.

Online 10 May 2008

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