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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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.
In order to combat this practice, the Ministry of Economic Affairs, Industrial Development Bureau serves as the regulatory agency for 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.
6 MT), esters of phenyl acetic acid (80 MT), tartaric acid (40 MT), acetic acid (32 MT), phenyl acetic acid (9 MT), piperonal (4 MT).
N-methyl-N-pipcronylamine can be synthesized from piperonal by the Leuckart reaction via the intermediate N-methyl-N-piperonylformamide.
The Government of India (GOI) controls acetic anhydride, N-acetylanthranilic acid, anthranilic acid, ephedrine, pseudoephedrine, potassium permanganate, ergotamine, 3, 4-methylenedioxyphenyl-2-propanone, 1-phenyl-2propanone, piperonal, and methyl ethyl ketone, all chemicals listed in the convention.
The GOI controls acetic anhydride, N-acetylanthranilic acid, anthranilic acid, ephedrine, pseudoephedrine, potassium permanganate, ergotamine, 3, 4-methylenedioxyphenyl-2-propanone, 1-phenyl-2propanone, piperonal, and methyl ethyl ketone, all chemicals listed in the convention.
It also requires a No Objection Certificate for the import of acetic anhydride, ergotamine and piperonal.