摘要：

Base-promoted elimination of p -toluenesulfinic acid from N -formamidoaryl sulfones leads to the corresponding N -acylimines that react with primary and secondary nitronate anions giving anti -β-formamido nitroderivatives in good yields and high diastereoselectivity. ; Base-promoted elimination of p -toluenesulfinic acid from N -formamidoaryl sulfones leads to the corresponding N -acylimines that react with primary and secondary nitronate anions giving anti -β-formamido nitroderivatives in good yields and high diastereoselectivity.

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