Synthese substituierter 2??Aminochinolin??1??oxide durch reduktive Cyclisierung substituierter 3??(2??Nitrophenyl) acrylnitrile

D Sicker, H Wilde

Index: Sicker, D.; Wilde, H. Journal fuer Praktische Chemie/Chemiker-Zeitung, 1992 , vol. 334, # 1 p. 76 - 80

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Abstract

Abstract. An approach to the class of 2-aminoquinoline-1-oxides is given based on reductive cyclization of appropriate substituted 3-(2-nitrophenyl) acrylonitriles. Thus, 2- nitrobenzylidene compounds 1 ad have been reductively cyclized by H2/Pt02 or H2/Pd-C under normal conditions to form N-oxides 2 ad.'H-NMR data show that I d has to be regarded as ethyl (Z)-2-cyano-3-hydroxy-3-(2-nitrophenyl) acrylate.