Author, as appears in the article.: Fanfoni, Lidia; Meduri, Angelo; Zangrando, Ennio; Castillon, Sergio; Felluga, Fulvia; Milani, Barbara;

Department: Química Analítica i Química Orgànica

URV's Author/s: Castillón Miranda, Sergio

Keywords: Rhodium(i) Quinolines Polymerization Pd(ii) complexes Palladium(ii) complexes Palladium Oligomerization Nickel(ii) complexes Hybrid phosphorus-nitrogen ligands Ethylene Co/ethylene Alternating copolymerization Alkene dimerization

Abstract: Two new chiral, enantiomerically pure, hybrid P-N ligands, namely (2R,5S)-2-phenyl-3-(2-pyridyl)-1,3-diaza-2-phosphanicyclo[3,3,0]octan-4-one (1) and (2R,5S)-2phenyl-3-(2-pyridyl)-1,3-diaza-2-phosphanicyclo[3,3,0]octane (2), have been synthesized starting from L-proline. The two ligands differ in the presence or not of a carbonyl group in the diazaphosphane ring. Their coordination chemistry towards Pd(II) was studied by reacting them with [Pd(CH3)Cl(cod)]. A different behaviour was observed: ligand 2 shows the expected bidentate chelating behaviour leading to the mononuclear Pd-complex, while ligand 1 acts as a terdentate ligand giving a dinuclear species. The corresponding cationic derivatives were obtained from the palladium neutral complexes, both as mono-and dinuclear derivatives, and tested as precatalysts for styrene dimerization, yielding E-1,3-diphenyl-1-butene regio- and stereoselectively as the sole product. A detailed analysis of the catalytic behaviour is reported.

Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Psicología Planejamento urbano e regional / demografia Physical and theoretical chemistry Pharmaceutical science Organic chemistry Odontología Nutrição Molecular medicine Medicine (miscellaneous) Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Interdisciplinar Geografía General medicine Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Educação física Economia Drug discovery Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, organic Chemistry, multidisciplinary Chemistry (miscellaneous) Biotecnología Biodiversidade Biochemistry & molecular biology Astronomia / física Analytical chemistry

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 1420-3049

Author's mail: sergio.castillon@urv.cat

Author identifier: 0000-0002-0690-7549

Record's date: 2023-02-18

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.mdpi.com/1420-3049/16/2/1804

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Molecules. 16 (2): 1804-1824

APA: Fanfoni, Lidia; Meduri, Angelo; Zangrando, Ennio; Castillon, Sergio; Felluga, Fulvia; Milani, Barbara; (2011). New Chiral P-N Ligands for the Regio- and Stereoselective Pd-Catalyzed Dimerization of Styrene. Molecules, 16(2), 1804-1824. DOI: 10.3390/molecules16021804

Article's DOI: 10.3390/molecules16021804

Entity: Universitat Rovira i Virgili

Journal publication year: 2011

Publication Type: Journal Publications