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The composition of the essential oil obtained by hydrodistillation from the leaves of Stachys schtschegleevii Sosn. before the flowering stage was analyzed by GC and GC-MS. Forty-five compounds representing 98.7% of the total oil were identified, of which α-pinene (36.4%), germacrene-D (18.6%),...
Drim-9(11)-en-8α-ol and drim-9(11)-en-8β-ol were synthesized in six steps from drimenol. Drimenol was oxidized by P 2 O 5 and DMSO to drimenal, which isomerized with p -TsOH into isodrimenal. Isodrimenal was reduced by NaBH 4 into isodrimenol, epoxidation of which by m -CPBA gave a mixture...
The sidechain of the germacranolide stizolicin was oxidized by CrO 3 in Py to form a lactone. The structure of the product was established as 4,5α-epoxy-7α,5,6,8β(H)-germacr-1(10),11(13)-dien-8α (3′-oxo-2′,5′-dihydrofuran-3′-carboxylyl)-12,6-olide using spectral data.
Previously unknown azomethines 3a-z and 4a-j were prepared in methanol by condensation of anthranilic acid 1 with vanillin, vanillal, and esters of these compounds 2 .
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