Synthesis of (Z)-Heneicosa-6-en-11-one To synthesize (Z)-heneicosa-6-en-11-one, you'll need a suitable alkene precursor. Start with an alkene compound, preferably with the desired chain length, and a double bond at the 6th position. Carry out a Wittig reaction, or a similar method, to convert the alkene into the corresponding alkene with the desired chain length. Ensure that the double bond is in the Z configuration. Oxidize the terminal alkene (the 11th position) to obtain the ketone.
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