The design, the synthesis and the successful immobilization of a modified Takemoto’s catalyst is described. As support, poly(methylhydrosiloxane (PMHS) was chosen for its several positive features: it is a cheap, commercially available polymer, easily functionalized with simple experimental procedures. The PMHS-anchored enantiomerically pure bifunctional organocatalyst was employed in the stereoselective addition of activated carbon nucleophiles to nitrostyrene and its recovery and recyclability was preliminarily investigated.
Poly(methylhydrosiloxane)-supported chiral thiourea-based bifunctional catalysts / A. Puglisi, E. Massolo, M. Benaglia, G. Celentano. - In: RECYCLABE CATALYSIS. - ISSN 2084-7629. - 1:(2013 Aug 23), pp. 1-5. [10.2478/recat-2012-0001]
Poly(methylhydrosiloxane)-supported chiral thiourea-based bifunctional catalysts
A. Puglisi;E. Massolo;M. BenagliaPenultimo
;G. Celentano
2013
Abstract
The design, the synthesis and the successful immobilization of a modified Takemoto’s catalyst is described. As support, poly(methylhydrosiloxane (PMHS) was chosen for its several positive features: it is a cheap, commercially available polymer, easily functionalized with simple experimental procedures. The PMHS-anchored enantiomerically pure bifunctional organocatalyst was employed in the stereoselective addition of activated carbon nucleophiles to nitrostyrene and its recovery and recyclability was preliminarily investigated.
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