Výsledky vyhledávání - "Dragan Šepac"

Synthesis of All Stereoisomers and Some Congeners of Isocytoxazone

Autor: Dragan Šepac, Dinko Žiher, Zdenko Hameršak, Vitomir Šunjić

Publikováno v: Synthesis. 2003:0375-0382

cis-Isocytoxazone 2a and trans-isocytoxazone 2b, structural isomers of the antiasthmatic agent cytoxazone (-)-1, and their 5-substituted congeners 23-28 have been prepared. Aldol reaction of para-substituted benzaldehydes with 7-chloro-1-methyl-5-phe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::689137d0c88b991c043deb150e5b5efa
https://doi.org/10.1055/s-2003-37353

Zobrazit plný text záznamu

Chiroptical, structural and catalytic properties of S-α-methyl-[1-(substituted phenyl)-2-(2′-pyrido)-1-ethylidene] benzylamines and their Rh(I) and Cu(I) complexes

Autor: Biserka Kojić-Prodić, Rudolf Kiralj, Kata Mlinarić-Majerski, Vitomir Šunjić, Dragan Šepac, Vladimir Vinković

Publikováno v: Tetrahedron: Asymmetry. 4:575-590

S-α-Methyl-[1-(substituted-phenyl)-2-(2′-pyrido)-1-ethylidene]benzylamines 15–21 and their Rh(I) complexes 22–28 are prepared and their chiroptical and conformational properties are studied. Free ligands are present as enamines in the solution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a60cd7ccf62e500867c392682c00cc21
https://doi.org/10.1016/s0957-4166(00)86098-x

Zobrazit plný text záznamu

ChemInform Abstract: Synthesis and Properties of Some Rh(I) Catalytic Complexes with Dinitrogen Ligands Derived from 5-Pyrido-1,4-benzodiazepin-4-ones

Autor: Predrag Cudic, Zlata Raza, Branimir Klaić, Dragan Šepac, Vitomir Šunjić

Publikováno v: ChemInform. 22

A series of bidentate nitrogen ligands (3–8), and their [Rh (I) (NBD) (N-N)] ClO4 complexes 11–14 (NBD-norbornadiene, N-N-dinitrogen ligand) were prepared. Conformational properties and stability of 4 and its catalytic complex 12 were reported. C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12aa5b618dd9ef9544f0df8bf2a928cc
https://doi.org/10.1002/chin.199140209

Zobrazit plný text záznamu

ChemInform Abstract: Chiroptical, Structural and Catalytic Properties of S-α-Methyl-( 1-(substituted phenyl)-2-(2′-pyrido)-1-ethylidene)benzylamines and Their Rh(I) and Cu(I) Complexes

Autor: Rudolf Kiralj, Biserka Kojić-Prodić, Kata Mlinarić-Majerski, Vitomir Šunjić, Vladimir Vinković, Dragan Šepac

Publikováno v: ChemInform. 24

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d443712f1f07634d93b49caee4c10d5d
https://doi.org/10.1002/chin.199330061

Zobrazit plný text záznamu

Synthesis and properties of some Rh(I) catalytic complexes with dinitrogen ligands derived from 5-Pyrido-1,4-benzodiazepin-4-ones

Autor: Predrag Cudic, Zlata Raza, Branimir Klaić, Vitomir Šunjić, Dragan Šepac

Publikováno v: Tetrahedron. 47:5295-5308

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47949fb97cbe167aff2bed490643187f
https://doi.org/10.1016/s0040-4020(01)87141-6

Zobrazit plný text záznamu

Combined X-Ray Diffraction and QM/MM Study of the Burkholderia cepacia Lipase-Catalyzed Secondary Alcohol Esterification

Autor: Marija Luić, Igor Ceilinger, Zoran Štefanić, Tihana Lenac, Dusanka Janezic, Milan Hodoscek, Sanja Tomić, Ivana Leščić Ašler, Dragan Šepac

To understand the origin of high enantioselectivity of Burkholderia cepacia lipase (BCL) towards secondary alcohol, (R, S)-1-phenoxy-2-hydroxybutane (1) and its ester (E1) we determined the crystal structure of BCL complexed with phosphonate analogue

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a23e467b266950edff39a61969fc7b5
https://doi.org/10.1021/jp077717u

Zobrazit plný text záznamu

Macrocyclic vs. acyclic derivatives of chiral bis(oxazolines) ; ligand distortion and enantioselectivity of Pd(II) complexes in catalytic allylic alkylation

Autor: Željko Marinić, Mladen Žinić, Vitomir Šunjić, Dragan Šepac, Tomislav Portada

Pd(II) complexes of acyclic ( 1 , 2 ; 4 , 5 ) and macrocyclic ( 3 , 6 – 10 ) derivatives of 1,5-bis(oxazolines), are tested in the enantioselective allylic alkylation of racemic 1,3-diphenyl-3-acetoxyprop-2-ene ( 14 ) by dimethylmalonate anion to a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::594f12bc152e84af00c73f2300cf780c
https://www.bib.irb.hr/117506

Zobrazit plný text záznamu

Comparative Study of 1,5-Dinitrogen Schiff Bases as Potential Ligands in Palladium-Catalyzed Allylic Alkylation

Autor: Dragan Šepac, Zdenko Hameršak, Marin Roje, Vitomir Šunjić

Publikováno v: Croatica Chemica Acta
Volume 76
Issue 3
Scopus-Elsevier

1-(2'-Pyrido and 2'-quinolino)-(1R)-arylethylamino)-ethylidenes (7-12) were prepared as potential ligands in Pd Η catalytic complexes for enantioselective allylic alkylation of 1,3-diphenyl-1-acetoxy-propene-2 (15). Alkylation with palladium complex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3c01b32d74ce6f40bf82c460b008b93
https://hrcak.srce.hr/103173

Zobrazit plný text záznamu

Aldol derivatives of 5-phenyl-1,4-benzodiazepin-2-on- N4-oxide; intriguing inertness of N-oxides in aldol reactions

Autor: Vitomir Šunjić, Zdenko Hameršak, Dragan Šepac

Publikováno v: ARKIVOC, Vol 2003, Iss 14, Pp 8-13 (2003)

On an attempt to prepare 3-substituted 7-chloro-1, 3- dihydro-1-methyl-5-phenyl-2H-1, 4-benzodiazepin-2-on- N4-oxides 7-10, C(3) carbanion of 5-phenyl-1, 4- benzodiazepin-2-on-N4-oxyde (2) proved completely inert in aldol reaction: Detour to the targ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::656dc5bc11445893ba744ed71aac17f0
https://www.bib.irb.hr/120933

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání