Polystyrene-supported proline has been used as co-organocatalyst (10 mol%) with imidazole (10 mol%) in the Baylis-Hillman reaction between methyl or ethyl vinyl ketone and arylaldehydes. Recycling studies showed that the proline resin can be used up to five cycles with high isolated yields. This study represents the first example of supported proline as heterogeneous catalyst in the above reaction and broaden the scope of this catalytic material.
GIACALONE F, GRUTTADAURIA M, MOSSUTO MARCULESCU A, D'ANNA F, NOTO R (2008). Polystyrene-supported proline as recyclable catalyst in the Baylis-Hillman reaction of arylaldehydes and methyl or ethyl vinyl ketone. CATALYSIS COMMUNICATIONS, 9, 1477-1481 [10.1016/j.catcom.2007.12.015].
Polystyrene-supported proline as recyclable catalyst in the Baylis-Hillman reaction of arylaldehydes and methyl or ethyl vinyl ketone
GIACALONE, Francesco;GRUTTADAURIA, Michelangelo;MOSSUTO MARCULESCU, Adriana;D'ANNA, Francesca;NOTO, Renato
2008-01-01
Abstract
Polystyrene-supported proline has been used as co-organocatalyst (10 mol%) with imidazole (10 mol%) in the Baylis-Hillman reaction between methyl or ethyl vinyl ketone and arylaldehydes. Recycling studies showed that the proline resin can be used up to five cycles with high isolated yields. This study represents the first example of supported proline as heterogeneous catalyst in the above reaction and broaden the scope of this catalytic material.
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