Ethyl p-Methoxycinnamate from Kaempferia galanga L. in Vietnam

The title compound, ethyl (E)-3-(4-methoxyphenyl)propenoate, C₁₂H₁₄O₃, was isolated from the rhizomes of the Vietnamese plant Kaempferia galanga L. Its chemical identity was confirmed by an X-ray investigation, which established clearly a molecular trans configuration. As expected, the molecule is completely planar with a bonding geometry similar to that found in free cinnamic acid and related derivatives.

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