✍ Scribed by Hisahiro Hagiwara; Teppei Adachi; Masaharu Doya; Takashi Hoshi; Toshio Suzuki
No coin nor oath required. For personal study only.
An expedient synthesis of (E)‐3‐methylcyclopentadec‐2‐en‐1‐one, an important precursor for (R)‐(−)‐muscone, was developed. The key steps were vapour‐phase intramolecular aldol condensation catalysed by zinc oxide at 360 °C followed by double bond isomerization by the addition–elimination of hydrogen chloride. Copyright © 2011 John Wiley & Sons, Ltd.
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