Eleuthesides and their analogs: I. Synthesis of the base compound from levoglucosenone adduct with piperylene
作者:Yu. A. Kondrova、O. Yu. Krasnoslobodtseva、L. V. Spirikhin、F. A. Valeev
DOI:10.1134/s1070428010080063
日期:2010.8
and piperylene was converted into the corresponding oxime, and second-order Beckmannrearrangement of the latter, followed by treatment with a base, gave (1S,2R,6R)-6-(2-hydroxyethyl)-2-methylcyclohex-3-ene-1-carbaldehyde which was used in the synthesis of eleutheside analog. Conditions were found for opening of oxirane ring with formation of primary alcohol and simultaneous reduction of cyano group
Eleuthesides and their analogs: IV. Synthesis of (1R,5R,6S)-6-(1,3-dithian-2-yl)-1-(2-hydroxyethyl)-5-methylcyclohex-3-ene and its O-tert-butyldimethylsilyl derivative
作者:B. T. Sharipov、A. A. Pershin、A. N. Pilipenko、Sh. M. Salikhov、F. A. Valeev
DOI:10.1134/s1070428013100060
日期:2013.10
Two schemes for the preparation of chiral alcohols as key synthons for the synthesis of eleutheside analog at the A ring have been developed on the basis of the Diels-Alder adduct of levoglucosenone with piperylene.
Oxidation with CrO3·2Py of levoglucosenone and 1,3-dienes Diels-Alder adducts
作者:I. M. Biktagirov、L. Kh. Faizullina、Sh. M. Salikhov、F. Z. Galin、M. G. Safarov、F. A. Valeev
DOI:10.1134/s107042801605016x
日期:2016.5
Diels-Alder adducts of levoglucosenone with 1,3-butadiene, piperylene, and isoprene, and also some of their derivatives undergo allylic oxidation with CrO3 center dot 2Py only in the case when the effect of a keto group or of another electron-acceptor group in the gamma-position with respect to the double bond is removed.
Transformation of the cyclohexene fragment in the Diels-Alder adducts of levoglucosenone with 1,3-dienes into cyclopentane
作者:I. M. Biktagirov、L. Kh. Faizullina、Sh. M. Salikhov、M. G. Safarov、F. A. Valeev
DOI:10.1134/s1070428015100188
日期:2015.10
Vicinal hydroxylation of the Diels-Alder adducts of levoglucosenone with buta-1,3-diene, penta- 1,3-diene, and cyclopentadiene by the action of sodium periodate or ozonolysis is accompanied by cleavage of the double bond, and intramolecular aldol reaction of the resulting aldehydes yields cyclopentane derivatives.
Synthesis of chiral 2,3-cis-fused butan-4-olides from levoglucosenone–1,3-diene Diels–Alder adducts
作者:Anna N. Davydova、Alexey A. Pershin、Bulat T. Sharipov、Farid A. Valeev