Diastereoselective Addition Reactions of Furyl Sulfonylimine Using Chiral Boronates as Auxiliary: Application to the Enantioselective Synthesis of 2,3-Disubstituted Furyl Sulfonylamides<sup>†</sup>
2004-04-16T00:00:00Z (GMT) by
The addition reactions of various nucleophiles to a furyl sulfonylimine bearing a chiral boronate at the C-3 position furnished chromatographically separable diastereomers. The <i>R</i> diastereoselection was found to be more favorable. Further transformation of C−B bonds to C−C bonds was achieved by using standard Suzuki coupling conditions to give optically active 2,3-disubstituted furyl sulfonylamides.
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