Synthesis of Tri??and Tetracyclic Condensed Quinoxalin??2??ones Fused Across the C??3− N??4 Bond

R Chicharro, S de Castro, JL Reino…

Index: Chicharro, Roberto; De Castro, Sonia; Reino, Jose L.; Aran, Vicente J. European Journal of Organic Chemistry, 2003 , # 12 p. 2314 - 2326

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Citation Number: 30

Abstract

Abstract We have studied the preparation of some fused quinoxalinones by Stevens rearrangement of a spiro-quinoxaline-derived ammonium ylide or by treatment of N-(2, 4- dinitrophenyl)-and N-(2-nitrophenyl) imino acids with different reducing agents. We have reinvestigated and clarified some related processes found in the literature starting from imino acids derivatives. Additional reactions of the fused quinoxalinones, as well as the ...