piperonal


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piperonal

[pə′per·ə‚nal]
(organic chemistry)
C8H6O3 White crystals with a floral odor and a melting point of 35.5-37°C; soluble in alcohol and ether; used in medicine, perfumes, suntan preparations, and mosquito repellents. Also known as heliotropin.
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Other common precursors include saffrol, isosaffrol, piperonal, and safrole (often from sassafras oil) (37).
9] Jithan Aukunuru,Keerthana Eedula,Venakanna Pasham,Venumadav Katla and Srinivas Reddy k/'Synthesis of Novel Piperonal Derivatives and Evaluation of their Anticonvulasant using A Nanoparticular Formulation ,International Journal of Pharmaceutical Sciences and Nanotechnology,Volume 2, issue 1,April-june 2009(P435-P442.
Description: PPG-2 methylether (and) piperonal (and) phenylpropanol
Concentrations of nine alkenylbenzenes, coumarin, piperonal and pulegone in Indian bidi cigarette tobacco.
A spray containing piperonal (Rappell) is designed to repel head lice, as can aromatherapy oils of Bergamot, Eucalyptus, Geranium, Oregano or Tea Tree.
The simplest and most effective measure is to tie long hair back and use a proven repellent like piperonal (Rappell).
Interestingly, in the reaction conducted on piperonal (3,4-methylenedioxybenzaldehyde), a large amount of a by-product, N-methyl-N,N-dipiperonylamine was produced with an isolated yield of 32.
The Ministry of Economic Affairs, Industrial Development Bureau plays a regulatory role in tracking chemicals such as acetic anhydride, piperonal, safrole, piperidine, hydrogen chloride, and potassium permanganate.
They include organic acids (acetic, benzoic, cinnamic and phenylacetic); alcohols (benzyl alcohol, borneol, cinnamyl alcohol, citronellol, geraniol, linalool, menthol, phenylethyl alcohol and terpineol); aldehydes (anisic aldehyde, cinnamic aldehyde, benzaldehyde, citral, piperonal or heliotropin, salicylic aldehyde and vanillin); ketones (carvones, camphor, thujone, pulegone, etc; esters such as bornyl acetate, methyl salicylate, benzyl benzoate, geranyl acetate and linalyl acetate); phenols (thymol, carvacrol and chavicol); phenol ethers (anethol, eugenol and safrol) and many other more complex compounds such as coumarin and indol.