Synthesis and characterization of novel phosphinamide bidentate ligands with groups P=O, P=S and P=Se: Application in coordination chemistry with Zn++

Synthesis and characterization of novel phosphinamide bidentate ligands with groups P=O, P=S and P=Se: Application in coordination chemistry with Zn++

Bastos, Neidemar de M. S.; Macedo, Júlia T. de; Souza, Marcos C. de; Romeiro, Gilberto A.; Resende, Jackson A. L.C.; Iglesias, María J.; Ortiz, Fernando L.; Casimiro, María; Freitas., Maria C. R.

Abstract:

Hemilabile ligands possessing two or more donor atoms with very different electronic properties close to the metal represent a very active research field. The binding of the metal to a chelating ligand containing hard and soft donor atoms allows for the easy displacement of the labile group providing access to an open coordination site in a reversible manner. These features make hemilabile ligands very interesting in a number of fields including coordination chemistry and metal complex catalysis. The current work presents a comprehensive study on the synthesis of novel phosphinamide bidentate ligands 3a-c employing directed ortho-lithiation methodology (Scheme 1) and subsequent complexation with zinc chloride.

Hemilabile ligands possessing two or more donor atoms with very different electronic properties close to the metal represent a very active research field. The binding of the metal to a chelating ligand containing hard and soft donor atoms allows for the easy displacement of the labile group providing access to an open coordination site in a reversible manner. These features make hemilabile ligands very interesting in a number of fields including coordination chemistry and metal complex catalysis. The current work presents a comprehensive study on the synthesis of novel phosphinamide bidentate ligands 3a-c employing directed ortho-lithiation methodology (Scheme 1) and subsequent complexation with zinc chloride.

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DOI: 10.5151/chempro-15bmos-BMOS2013_2013819151125

Referências bibliográficas

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• [2] 2 García-López, J.; Fernández, I.; Serrano-Ruiz, M. López-Ortiz, F. Chem.
• [3] Commun. 2007, 4674.
• [4] 3 Popovici, C.; Oña-Burgos, P.; Fernández, I.; Roces, L.; García-Granda,
• [5] S.; Iglesias, M. J.; López-Ortiz, F. Org. Lett. 2010, 12, 428.

Como citar:

Bastos, Neidemar de M. S.; Macedo, Júlia T. de; Souza, Marcos C. de; Romeiro, Gilberto A.; Resende, Jackson A. L.C.; Iglesias, María J.; Ortiz, Fernando L.; Casimiro, María; Freitas., Maria C. R.; "Synthesis and characterization of novel phosphinamide bidentate ligands with groups P=O, P=S and P=Se: Application in coordination chemistry with Zn++", p-174-174. In: In Blucher Chemistry Proceedings, São Paulo, v. 1, n. 2, Dezembro.2013. São Paulo: Blucher, 2013.
ISSN 23184043, DOI 10.5151/chempro-15bmos-BMOS2013_2013819151125