Polystyrene-immobilized pyrrolidine catalyzed Michael addition of cyclo- hexanone to nitrostyrenes
Polystyrene-immobilized pyrrolidine as a highly stereoselective and recyclable organocatalyst for asymmetric Michael addition of cyclohexanone to nitroolefins
Table 3
We have investigated the reactions using a variety of nitrostyrenes as the substrates under the standard reaction conditions and the results are summarized in Table 3. As shown in Table 3, high isolated yields were obtained for all the selected nitroolefins regardless of the electronic nat- ure of the aromatic substituent R.
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