A very short and convenient synthesis of 2-methyl-6-(2′-oxo-4′-methylcyclohex-3′-en-1′-yl)-2-heptene and (±)-12-hydroxy-2-oxobisabol-3-ene
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2-methyl-6-(2′-oxo-4′-methyl-cyclohex-3′-en-1′-yl)-2-heptene (II) and (±)-12-hydroxy-2-oxobisabol-3-ene (III), two naturally occurring terpenic ketones isolated from theStevia species and aerial parts ofPolychyrus fuscus respectively have been synthesized utilising tandem-phenylation reduction as a key reaction.
KeywordsTerpenic ketones tandem-phenylation reduction SeO2 hydroxylation
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