Synthesis of Tri- and Tetracyclic Condensed Quinoxalin-2-ones Fused Across the C-3−N-4 Bond
作者:Roberto Chicharro、Sonia de Castro、José L. Reino、Vicente J. Arán
DOI:10.1002/ejoc.200300028
日期:2003.6
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 acidsderivatives. Additional reactions of the fused quinoxalinones