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Your search keyword '"K. I. Kuchkova"' showing total 4 results
Start Over Author "K. I. Kuchkova" Journal russian chemical bulletin
4 results on '"K. I. Kuchkova"'

1. Oxidative transformations of diisobornyl disulfide

Author

A. N. Aryku, Pavel F. Vlad, E. S. Sekara, Alic Barba, Ion Dragalin, K. I. Kuchkova, and Nicon Ungur

Subjects
chemistry.chemical_compound, Chemistry, Sclareol, Stereochemistry, Yield (chemistry), Sclareol oxide, Disulfide bond, Organic chemistry, General Chemistry, Oxidative phosphorylation, Oxime
Abstract

13-Amino-14,15-dinorlabd-8(9)-ene was synthesized from sclareol in four steps in 47% total yield. 14,15-Dinorlabd-8(9)-en-13-one was an intermediate compound, reduction of its oxime with LiAlH4 was a key step of this synthetic scheme.

Published
2014
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2. Convenient synthesis of drimenol and its oxidation with selenium dioxide

Author

Ion Dragalin, Pavel F. Vlad, Aculina Aricu, and K. I. Kuchkova

Subjects
inorganic chemicals, Ethanol, integumentary system, organic chemicals, Inorganic chemistry, chemistry.chemical_element, Sulfuric acid, General Medicine, General Chemistry, medicine.disease, Terpenoid, Terpene, chemistry.chemical_compound, chemistry, polycyclic compounds, medicine, Organic chemistry, Dehydration, hormones, hormone substitutes, and hormone antagonists, Selenium
Abstract

A convenient synthesis of drimenol by treatment of readily available drimane-8α, 11-diol 11-monoacetate with sulfuric acid in ethanol under mild conditions was developed. Oxidation of drimenol with selenium dioxide gives known drim-7-ene-9α, 11-diol and drim-7-ene-11,12-diol as the major products.

Published
2004
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3. Efficient synthesis of onoceranediol from 12-hydroperoxy-8α,12-epoxy-11-bishomodrimane

Author

Pavel F. Vlad, A. N. Aryku, K. Deleanu, and K. I. Kuchkova

Subjects
Terpene, Triterpenoid, Chemistry, visual_art, visual_art.visual_art_medium, Organic chemistry, General Medicine, General Chemistry, Epoxy, Cleavage (embryo), Terpenoid, Saponification
Abstract

An efficient one-step synthesis of the diacetate of the tetracyclic triterpenoid onoceranediol (4) by radical cleavage of the readily available 12-hydroperoxy-8α,12-epoxy-11-bishomodrimane is described. Drim-9(11)-en-8α-yl acetate (7) is formed in this reaction as a byproduct. Onoceranediol diacetate 4 is converted into onoceranediol on treatment with LiAlH4, and acetate 7 is transformed into drim-9(11)-en-8α-ol on saponification.

Published
2005
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4. Convenient synthesis of drimenol and its oxidation with selenium dioxide.

Author

K. I. Kuchkova, A. N. Aricu, I. P. Dragalin, and P. F. Vlad

Abstract

Abstract A convenient synthesis of drimenol by treatment of readily available drimane-8a, 11-diol 11-monoacetate with sulfuric acid in ethanol under mild conditions was developed. Oxidation of drimenol with selenium dioxide gives known drim-7-ene-9a, 11-diol and drim-7-ene-11,12-diol as the major products. [ABSTRACT FROM AUTHOR]

Published
2004

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