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Schiff bases, named after Hugo Schiff, are compounds with the general structure R1R2C=NR' (where R' ≠ H), classified as a subclass of imines. These organic compounds are formed through a condensation reaction between an aldehyde or ketone and a primary amine, yielding water as a byproduct. In the fragrance industry, amines like methyl anthranilate and ethyl anthranilate are commonly combined with aldehydes, such as hydroxycitronellal, to form Schiff bases, a notable example being Aurantiol. The significance of Schiff bases lies in their contribution to enhancing the chemical stability and tenacity of the aldehyde component, making them less reactive and volatile than free aldehydes. This slows down the loss of the aldehyde through chemical reaction and evaporation. Furthermore, hydrolysis of a Schiff base releases both the aldehyde and methyl anthranilate, both of which have intense odors, creating long-lasting fragrance compositions. The formation of a Schiff base from methyl anthranilate results in the darkening of its pale yellow color due to a hypsochromic shift, affecting the color of the final fragrance product. This information is crucial for perfumers, who can utilize the reaction to create targeted materials with extended longevity. Understanding the ingredients is essential for producing quality perfumes. #schiffbases #fragrancechemistry #hugoschiff #aurantiol #scentspirscy #hydroxycitronellal #chemicalstability #fragrancetenacity #fragranceindustry #organiccompounds #perfume #learnperfumery #aldehydes #ketones #perfumery #perfumecreation #fragrancelongevity #perfumeryinnovation #modernchemistry #perfumeingredients

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Abhishek Badami

Technical Trainee-Keva Fragrances |Perfumery and Flavour Technology-ICT Mumbai

8mo

Interesting !

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