The Lewis-acidity of a series of bis-cationic Pt(II)(aqua) complexes bearing phosphane ligands was exploited to catalyze the conversion of dihydroxyacetone to ethyl lactate. The Pt(II) complex bearing 1, 2-bis(diphenylphosphanyl)ethane and triflate as counter anion showed high catalytic activity (TOF = 530 h1) and chemoselectivity (>96%) at 70 C. On intercalating the latter precatalyst between the lamellae of Na-montmorillonite by a cationic exchange process, high chemoselectivity for ethyl lactate (>99%) at 70 C was observed, which was maintained in three consecutive catalytic runs.
Ethyl lactate from dihydroxyacetone by a montmorillonite-supported Pt(II) diphosphane complex / Oberhauser, Werner; Evangelisti, Claudio; Caporali, Stefano; Dal Santo, Vladimiro; Bossola, Filippo; Vizza, Francesco. - In: JOURNAL OF CATALYSIS. - ISSN 0021-9517. - STAMPA. - 350:(2017), pp. 133-140. [10.1016/j.jcat.2017.04.006]
Ethyl lactate from dihydroxyacetone by a montmorillonite-supported Pt(II) diphosphane complex
CAPORALI, STEFANO;VIZZA, FRANCESCO
2017
Abstract
The Lewis-acidity of a series of bis-cationic Pt(II)(aqua) complexes bearing phosphane ligands was exploited to catalyze the conversion of dihydroxyacetone to ethyl lactate. The Pt(II) complex bearing 1, 2-bis(diphenylphosphanyl)ethane and triflate as counter anion showed high catalytic activity (TOF = 530 h1) and chemoselectivity (>96%) at 70 C. On intercalating the latter precatalyst between the lamellae of Na-montmorillonite by a cationic exchange process, high chemoselectivity for ethyl lactate (>99%) at 70 C was observed, which was maintained in three consecutive catalytic runs.File | Dimensione | Formato | |
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