| 释义 |
piperonal Chem.|pɪˈpɛrənəl|
[a. G. piperonal (Fittig & Mielck 1869, in Ann. d. Chem. u. Pharm. CLII. 37), f. piper(in piperine n. + -on -one + -al -al2.]
= heliotropin.
1869Chem. News 30 July 59/2 Piperinic acid,..when acted upon by permanganate of potassa in aqueous solution, yields a crystalline substance (formula, C8H6O3), which body the authors called piperonal. 1909C. A. Keane Mod. Org. Chem. vii. 123 Many substitutes for natural perfumes are also known, such as..heliotropin or piperonal, which possesses the odour of heliotrope. 1953Kirk & Othmer Encycl. Chem. Technol. X. 324 Piperonal (heliotropin)..is a colorless, lustrous crystalline solid with a smell resembling that of heliotrope... Its chief application is in perfumery. 1967L. F. & M. A. Fieser Reagents for Org. Synthesis I. 944 A mixture of piperonal with 1·5 l. of water is heated on the steam bath with vigorous stirring. |