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|Section2= |Section7= |Section8= }} Cinnamaldehyde is the organic compound that gives cinnamon its flavor and odor. This pale yellow, viscous liquid occurs naturally in the bark of cinnamon trees and other species of the genus ''Cinnamomum''. The essential oil of cinnamon bark is about 90% cinnamaldehyde. ==Structure and synthesis== Cinnamaldehyde was isolated from cinnamon essential oil in 1834 by Dumas and Péligot and synthesized in the laboratory by Chiozza in 1854. The natural product is ''trans''-cinnamaldehyde. The molecule consists of a benzene ring attached to an unsaturated aldehyde. As such, the molecule can be viewed as a derivative of acrolein. Its color is due to the π → π * transition: increased conjugation in comparison with acrolein shifts this band towards the visible. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「cinnamaldehyde」の詳細全文を読む スポンサード リンク
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