Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kuhajda Ksenija N."'
Autor:
Kovačević Branislav Z., Kevrešan Slavko E., Orlović Saša S., Miladinović Dragana M., Ćirin-Novta Vera S., Kuhajda Ksenija N., Katanić Marina B.
Publikováno v:
Zbornik Matice Srpske za Prirodne Nauke, Vol 2014, Iss 126, Pp 7-13 (2014)
The study describes the rooting effect of naphthenates and their fractions on in vitro grown Robinia pseudoacacia L. shoots. Natural naphthenic acids have been isolated by alkaline extraction from middle fraction of crude oil type “Velebit” fr
Externí odkaz:
https://doaj.org/article/853510eb6b704f3ea34f06548f0936f4
Autor:
Kevrešan Slavko E., Malenčić Đorđe R., Popović Milan T., Kuhajda Ksenija N., Kandrač Julijan E.
Publikováno v:
Journal of the Serbian Chemical Society, Vol 74, Iss 8-9, Pp 857-865 (2009)
The objective of this work was to study the effect of treatment of young soybean plants with cholic acid of different concentrations on their oxidative status. Young soybean plants, grown hydroponically for two weeks, were treated by adding cholic ac
Externí odkaz:
https://doaj.org/article/ede5cf50d62540c29e799e8f6caa604a
Autor:
Kuhajda Ksenija N., Cvjetićanin Stanko M., Đurendić Evgenija A., Sakač Marija N., Penov-Gaši Katarina M., Kojić Vesna V., Bogdanović Gordana M.
Publikováno v:
Hemijska Industrija, Vol 63, Iss 4, Pp 313-318 (2009)
The new conjugates of selected bile acids (hyocholic (2), deoxycholic (3), hyodeoxycholic (4) and 12-ketocholic (5) acids) with ethyl 11-aminoundecanoate 7, 8, 11, and 13 were synthesized. The conjugation reaction was carried out in ethyl acetate in
Externí odkaz:
https://doaj.org/article/59e47a2b1e5147a7ba2c905c39f587be
Autor:
Ćirin-Novta Vera S., Kuhajda Ksenija N., Kevrešan Slavko E., Kandrač Julijan E., Grbović Ljubica M., Rodić Petar A.
Publikováno v:
Acta Periodica Technologica, Vol 2004, Iss 35, Pp 87-94 (2004)
The investigated petroleum acids have been isolated from middle oil fractions (b.p. 270-380°C) of Vojvodina crude oil "Kelebija." Group-structural analysis was performed with low resolution mass spectrometry using Field Ionization and Chemical Ioniz
Externí odkaz:
https://doaj.org/article/9c47806cebd7405283c7a19e6959c588
Autor:
Penov-Gaši Katarina M., Kuhajda Ksenija N., Cvjetićanin Stanko M., Đurendić Evgenija A., Medić-Mijačević Ljubica D., Pejanović Vjera M., Sakač Marija N.
Publikováno v:
Acta Periodica Technologica, Vol 2003, Iss 34, Pp 111-118 (2003)
The multistage syntheses of the p-toluenesulphonyloxy esters (1-benzyloxy-4-p-toluenesulphonyloxybutane (3a) 1-benzyloxy-6-p-toluenesulphonyloxyhexane (3b) and 1-benzyloxy-10-p-toluenesulphonyloxydecane (3c)(, alkyl chlorides (1-benzyloxy-4-chlorobut
Externí odkaz:
https://doaj.org/article/e1d9f40384954ac1b7d3a3becbbd6d97
Autor:
Ćirin-Novta Vera S., Kevrešan Slavko E., Kuhajda Ksenija N., Kandrač Julijan E., Radić Ljubica M., Rodić Petar A.
Publikováno v:
Acta Periodica Technologica, Vol 2003, Iss 34, Pp 49-54 (2003)
Petroleum acids can be obtained from oil and oil derivatives by alkaline extraction. The aim of this work was to optimize the process of alkaline extraction of petroleum acids from light commercial oil fractions of Vojvodina "Velebit" oil by changing
Externí odkaz:
https://doaj.org/article/8a1830948ab74448b465113da8469eb8
Autor:
Ćirin-Novta Vera S., Kuhajda Ksenija N., Kevrešan Slavko E., Kandrač Julijan E., Radić Ljubica M.
Publikováno v:
Acta Periodica Technologica, Vol 2002, Iss 33, Pp 135-142 (2002)
Natural petroleum acids of naphthenic type such as carboxylic acids from petroleum basins of Vojvodina are interesting because of diverse possibilities for their use, most importantly for their biological activity and the potential use as plant growt
Externí odkaz:
https://doaj.org/article/9ab8a6a07e55419cbf6e715607e32552
Publikováno v:
Journal of the Serbian Chemical Society, Vol 69, Iss 5, Pp 349-351 (2004)
A novel multi-step synthesis of 3α,12α-dihydroxy-23a,23b-dihomo-5β-cholan 24-oic acid (23a,23b-dihomodeoxycholic acid) (5) has been achieved from methyl 3α,12α-dihydroxy-5β-cholanoate (1). Reduction of compound 1 with LiAlH4 in dry ether gave t
Externí odkaz:
https://doaj.org/article/9e071b361b0048a0acb9e3620997017f
Autor:
Poša, Mihalj M.1 junposam@eunet.rs, Kuhajda, Ksenija N.2
Publikováno v:
Journal of the Serbian Chemical Society. Apr2010, Vol. 75 Issue 4, p433-440. 8p. 4 Diagrams, 2 Charts.