Chemical Studies on Ambergris

Abstract
Dihydro-α-ionol (II) was converted to dihydro-α-ionyl bromide (III) and dihydro-α-ionyl tosylate (V), which afforded their Wittig reagents (IV), (VI) on heating with tri-phenylphosphine. The Wittig reaction of ambreinolal-tetrahydropyranylether (VII) with the above Wittig reagents (IV) or (VI) gave a-ambrein-tetrahydropyranylether (VIII).

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