Conjugate intra- and intermolecular addi
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Cristiana Fava; Roberta Galeazzi; Eugenia Maria Gonzalez-Rosende; Mario Orena
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Article
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2000
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Elsevier Science
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French
โ 80 KB
By treatment with methoxide anion on polymeric support (IRA 900), chiral b-oxo or b-sulphonylamides 2 bearing an a,b-unsaturated ester gave 3,4-disubstituted pyrrolidin-2-ones 3 as easily separable diastereomeric mixtures in good yield and moderate-to-good stereoselection. The polymeric reagent was