ChemInform Abstract: O‐NITROANILINE DERIVATIVES. PART V. CYCLISATION OF N‐ACYLATED DERIVATIVES OF N‐BENZYL‐ AND N‐P‐NITROBENZYL‐O‐NITROANILINE‐ A COMPARISON OF CARBOXAMIDES AND SULPHONAMIDES
Abstract:Die Cyclisierung der N‐Nitrobenzyl‐sulfonamide (Ia), (Ib) bzw. ‐amide (Ic) mit methanolischem Na‐methylat liefert jeweils das Benzimidazol (II); nur im Falle von (Ia) wird daneben das Methylderivat (III) erhalten [im Falle von (Ib) Bildung von (III) nur in Spuren].
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