Portal de Periódicos da CAPES

N-Benzyl and N-aryl bis(phospha-Mannich adducts): Synthesis and catalytic activity of the related bidentate chelate platinum complexes in hydroformylation

2012; Elsevier BV; Volume: 717; Linguagem: Inglês

10.1016/j.jorganchem.2012.07.031

1872-8561

Erika Bálint, Eszter Fazekas, Péter Pongrácz, László Kollár, László Drahos, Tamás Holczbauer, Mátyás Czugler, György Keglevich,

Asymmetric Hydrogenation and Catalysis

The microwave-assisted double Kabachnik–Fields (phospha-Mannich) reaction of benzylamine and arylamines, two equivalents of paraformaldehyde and the P(O)H reagent, such as dialkyl phosphites, ethyl phenyl-H-phosphinate and diphenylphosphine oxide gave the bis(P(O)CH2)amine derivatives in good yields. The bis(diphenylphosphinoxido) derivatives were converted to the corresponding ring platinum complexes after deoxygenation whose catalytic activity was tested in the hydroformylation of styrene. Crystal structure analysis of one of the complexes reveals interesting correlations between complex structure and solvent inclusion.