N-Methyl-N-styrylcinnamamide (lansamide) fromClausena lansiumin Vietnam

Peter Luger,Nguyen Xuan Dung,Hoang Van Luu,Manuela Weber,Tran Dinh Thang

doi:10.1107/s1600536809009611

Peter Luger, Nguyen Xuan Dung + Show 3 more

Open Access

https://doi.org/10.1107/s1600536809009611

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Abstract

The title compound, C18H17NO, was isolated from the seeds of Clausena lansium (wampee) (Rutaceae). The X-ray crystal structure analysis confirmed its chemical identity and revealed that it is solvent-free, in contrast to the previously reported monohydrate [Huang, Ou & Tang (2006 ▶). Acta Cryst. E62, o1987–o1988]. The molecular structures are practically identical but the molecules pack differently. In contrast to the monohydrate in which the water molecule generates two hydrogen bonds, no such intermolecular contacts are present in the title compound. The dihedral angle between the cinnamamide and the styryl group is 53.1 (1)°.

Highlights

The title compound, C18H17NO, was isolated from the seeds of Clausena lansium (Rutaceae)
In contrast to the monohydrate in which the water molecule generates two hydrogen bonds, no such intermolecular contacts are present in the title compound
The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry

Summary

Crystal data

Hoang Van Luub and Nguyen Xuan Dungc a Institut für Chemie und Biochemie-Kristallographie, Fachbereich Biologie-ChemiePharmazie der Freien Universität, Fabeckstrasse 36a, 14195 Berlin, Germany, b. Faculty of Chemistry, Vinh University, 182-Le Duan, Vinh City, Nghean Province, Vietnam, and cFaculty of Chemistry, College of Natural Sciences, Hanoi National. R factor = 0.060; wR factor = 0.190; data-to-parameter ratio = 29.3. The title compound, C18H17NO, was isolated from the seeds of Clausena lansium (wampee) (Rutaceae). The X-ray crystal structure analysis confirmed its chemical identity and revealed that it is solvent-free, in contrast to the previously reported monohydrate [Huang, Ou & Tang (2006). The molecular structures are practically identical but the molecules pack differently. In contrast to the monohydrate in which the water molecule generates two hydrogen bonds, no such intermolecular contacts are present in the title compound. The dihedral angle between the cinnamamide and the styryl group is 53.1 (1)

Data collection

Special details