Výsledky vyhledávání - "Dabović Milan M."

Akademický článek

Photochemical and Beckmann rearrangement of (Z)-cholest-4-en-6-one oxime

Autor: Krstić Natalija M., Bjelaković Mira S., Dabović Milan M., Lorenc Ljubinka B., Pavlović Vladimir D.

Publikováno v: Journal of the Serbian Chemical Society, Vol 69, Iss 6, Pp 413-420 (2004)

Beckmann rearrangement of (Z)-cholest-4-en-6-one oxime (4) (prepared in 4 steps starting from cholest-5-en-3β-ol ο1)) with thionyl chloride in dioxane solution afforded an enamide-type lactam, i.e. 7-aza-B-homocholest-4-en-6-one (6) as a single pro

Externí odkaz: https://doaj.org/article/64fec7225b4e4c8ab3576b73746a221c

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Akademický článek

Synthesis of 5-azaandrostane-3β, 17β-diol protected at the 17-hydroxyl group

Autor: Pavlović Vladimir D., Dabović Milan M., Martinović Saša, Lorenc Ljubinka B., Kalvoda Jaroslav

Publikováno v: Journal of the Serbian Chemical Society, Vol 69, Iss 11, Pp 861-869 (2004)

In the present paper, the preparation of 3β-hydroxy-17β-dimethyl-tert-butylsilyloxy- 5-azaandrostane (15) in fourteen steps is described. B-nor-17-oxoandrost- 5-en-3β-yl acetate (1)1,2 was used as the starting material, which was transformed to th

Externí odkaz: https://doaj.org/article/855decf7affc46ac86d576c186b5bf0e

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Akademický článek

Acid-catalyzed and photolytic reactivity of some unsaturated B-nor-5, 10-secosteroidal ketones

Autor: Bjelaković Mira S., Pavlović Vladimir D., Dabović Milan M., Lorenc Ljubinka B.

Publikováno v: Journal of the Serbian Chemical Society, Vol 68, Iss 4-5, Pp 303-312 (2003)

The acid-catalyzed reaction of (Z)- and (E)-B-nor-5,10-seco-ketones 2 and 3 resulted in an intramolecular cyclization to give the 5-hydroxy-A-nor-1β,5β-10(19)-methylidene derivative 8, the 5β-hydroxy-A-nor-1(10)-unsaturated compound 9 and the 5β,

Externí odkaz: https://doaj.org/article/19f5999ec26c4ac89da44da42acd7464

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Akademický článek

Peracids oxidation of cholesta-5,8-dien-3β-yl acetate

Autor: Dabović Milan M., Petrović Ivanka J., Krstić Natalija M., Lorenc Ljubinka B.

Publikováno v: Journal of the Serbian Chemical Society, Vol 65, Iss 11, Pp 769-772 (2000)

Expoxidation of cholesta-5,8-dien-3β-yl acetate (1) with peracids takes place preferentially at the more highly substituted Δ8-olefinic double bond to give: (a) with monoperphthalic acid, 8α,9α-epoxycholest-5-en-3β-yl acetate (2) (in 39 % yie

Externí odkaz: https://doaj.org/article/626becd434c64418903cde4f1e98a0f9

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