Aminophosphonite-phosphite and aminophosphonite-phosphinite chiral ligands with mixed stereogenic elements have been prepared in good yields from chiral α-aminoalcohols such as 2-(hydroxymethyl)pyrrolidine and 2-N-ethylammino-1-butanol. These new ligands have been fully characterized; the Rh(I) complexes have been tested in catalytic hydrogenation and hydroformylation reactions. Enantioselectivities up to 70% have been obtained in asymmetric hydrogenation of α-acetamidocinnamic acid, methyl ester; enantioselectivities higher than 30% and regioselectivities higher than 98% have been obtained in asymmetric hydroformylation of vinyl acetate.
Aminophosphonite-phosphite and aminophosphonite-phosphinite ligands with mixed chirality: preparation and catalytic applications in asymmetric hydrogenation and hydroformylation / E. Cesarotti, S.Araneo, I. Rimoldi, S. Tassi. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - 204-205(2003), pp. 211-220.
|Titolo:||Aminophosphonite-phosphite and aminophosphonite-phosphinite ligands with mixed chirality: preparation and catalytic applications in asymmetric hydrogenation and hydroformylation|
CESAROTTI, EDOARDO (Primo)
ARANEO, SILVIA ROSA (Secondo)
RIMOLDI, ISABELLA (Penultimo)
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
|Data di pubblicazione:||2003|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/S1381-1169(03)00301-7|
|Appare nelle tipologie:||01 - Articolo su periodico|