Zobrazeno 1 - 10
of 31
pro vyhledávání: '"L. Kh. Faizullina"'
Publikováno v:
Russian Journal of Organic Chemistry. 58:1797-1800
Publikováno v:
Russian Journal of Organic Chemistry. 57:1628-1631
Publikováno v:
Russian Journal of Organic Chemistry. 57:1047-1052
Opening of the 1,6-anhydro bridge in levoglucosenone by the action of acetic anhydride in the presence of ZnCl2 afforded diastereoisomeric 1,6-di-O-acetyl-3,4-dideoxy-α/β-D-glycero-hex-3-enopyranos-2-uloses, and alcoholysis of the resulting diaceta
Publikováno v:
Russian Chemical Bulletin. 69:1933-1937
The synthesis of 2- and 3-hydroxy derivatives of isocembrol was accomplished by the epoxidation of isocembrol with tert-butyl hydroperoxide in the presence of a catalytic amount of VO(acac)2 followed by the epoxide ring opening in the presence of LiA
Publikováno v:
Russian Journal of Organic Chemistry. 56:1840-1843
Michael adduct of levoglucosenone and cyclohexanone, 1,6-anhydro-3,4-dideoxy-4-C-(2-oxocyclohexan-1-yl)-β-D-erythrohexo-2-ulose, was treated with ethylene glycol in the presence of oxalic acid, and the resulting mixed ketal, 2-{(4a′S,6a′S,10a′
Publikováno v:
Izvestia Ufimskogo Nauchnogo Tsentra RAN. :41-44
Publikováno v:
Russian Journal of Organic Chemistry. 56:197-201
The oxidation of diastereomeric Michael adducts of levoglucosenone and cyclohexanone with 5 equiv of H2O2 in isopropanol at 60°C results in selective formation of a γ-lactone. The reaction with 50 equiv of H2O2 under the same conditions gave a 6-ke
Publikováno v:
Izvestia Ufimskogo Nauchnogo Tsentra RAN. :74-77
Publikováno v:
Russian Journal of Organic Chemistry. 55:1832-1839
With the goal of obtaining fused dilactones, the carbohydrate moiety of diastereoisomeric Michael adducts of levoglucosenone and cyclohexanone was converted to δ-lactone and its derivatives fused to an octahydrochromene fragment. The subsequent oxid
Publikováno v:
Russian Journal of Organic Chemistry. 56:2036-2038
The Michael adducts of levoglucosenone and cyclohexanone were used to develop a rapid synthesis of nonano-9-lactones fused to a pyran ring containing a pharmacophoric dichloromethylene substituent. The key step in the synthesis is a cleavage, under t