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

Dragan Šepac ; Ruđer Bošković Institute, P.O.B. 180, 10002 Zagreb, Croatia
Marin Roje ; Ruđer Bošković Institute, P.O.B. 180, 10002 Zagreb, Croatia
Zdenko Hameršak ; Ruđer Bošković Institute, P.O.B. 180, 10002 Zagreb, Croatia
Vitomir Šunjić ; Ruđer Bošković Institute, P.O.B. 180, 10002 Zagreb, Croatia

Puni tekst: engleski, pdf (181 KB) str. 235-239 preuzimanja: 404* citiraj
APA 6th Edition
Šepac, D., Roje, M., Hameršak, Z. i Šunjić, V. (2003). Comparative Study of 1,5-Dinitrogen Schiff Bases as Potential Ligands in Palladium-Catalyzed Allylic Alkylation. Croatica Chemica Acta, 76 (3), 235-239. Preuzeto s https://hrcak.srce.hr/103173
MLA 8th Edition
Šepac, Dragan, et al. "Comparative Study of 1,5-Dinitrogen Schiff Bases as Potential Ligands in Palladium-Catalyzed Allylic Alkylation." Croatica Chemica Acta, vol. 76, br. 3, 2003, str. 235-239. https://hrcak.srce.hr/103173. Citirano 25.02.2021.
Chicago 17th Edition
Šepac, Dragan, Marin Roje, Zdenko Hameršak i Vitomir Šunjić. "Comparative Study of 1,5-Dinitrogen Schiff Bases as Potential Ligands in Palladium-Catalyzed Allylic Alkylation." Croatica Chemica Acta 76, br. 3 (2003): 235-239. https://hrcak.srce.hr/103173
Harvard
Šepac, D., et al. (2003). 'Comparative Study of 1,5-Dinitrogen Schiff Bases as Potential Ligands in Palladium-Catalyzed Allylic Alkylation', Croatica Chemica Acta, 76(3), str. 235-239. Preuzeto s: https://hrcak.srce.hr/103173 (Datum pristupa: 25.02.2021.)
Vancouver
Šepac D, Roje M, Hameršak Z, Šunjić V. Comparative Study of 1,5-Dinitrogen Schiff Bases as Potential Ligands in Palladium-Catalyzed Allylic Alkylation. Croatica Chemica Acta [Internet]. 2003 [pristupljeno 25.02.2021.];76(3):235-239. Dostupno na: https://hrcak.srce.hr/103173
IEEE
D. Šepac, M. Roje, Z. Hameršak i V. Šunjić, "Comparative Study of 1,5-Dinitrogen Schiff Bases as Potential Ligands in Palladium-Catalyzed Allylic Alkylation", Croatica Chemica Acta, vol.76, br. 3, str. 235-239, 2003. [Online]. Dostupno na: https://hrcak.srce.hr/103173. [Citirano: 25.02.2021.]

Sažetak
1-(2'-Pyrido and 2'-quinolino)-(1R)-arylethylamino)-ethylidenes (7–12) were prepared as potential ligands in PdII catalytic complexes for enantioselective allylic alkylation of 1,3-diphenyl-1-acetoxy-propene-2 (15). Alkylation with palladium complexes of 7–12 yielded 1,3-diphenyl-1-dimethylmalonyl-propene-2 (14) with enantioselectivity up to 55 % e.e. Enantioselectivity is discussed in view of the results recently reported for structurally related 1,5-bidentate dinitrogen ligands of C1 symmetry. Reversal of enantioselectivity observed for the ligands 10 and 11 is attributed to the inversion of steric requirements in the second coordination sphere of their catalytic complexes.

Ključne riječi
ethylidenes; conformation; PdII complexes; allylic alkylation

Hrčak ID: 103173

URI
https://hrcak.srce.hr/103173

Posjeta: 639 *