Mai asked in Science & MathematicsChemistry · 6 months ago

How Vanillin is an example of an aromatic monoterpenes and it has only 8 carbons and not 10 ?

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2 Answers

  • Mike A
    Lv 7
    6 months ago

    Terpenes are formed in nature by combining isoprenenyl units [ (CH3)C=CHCH2-] as such they are always branched and always contain multiples of five carbon atoms. Vinillin fails on both counts.

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  • 6 months ago

    From what I can find, vanillin is synthesized in plants from the amino acid phenylalanine, and phenylalanine is not synthesized by a pathway involving monoterpenes. So I don't believe that vanillin should be considered to be a monoterpene. Limonene and menthol are definitely aromatic monoterpenes, but I'm pretty sure that vanillin isn't.

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