Metal-free regioselective construction of diazabenzo[ e ]acephenanthrylene-1,2-dicarboxylates via a phosphine-mediated cycloadditon
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DOI: 10.1016/j.tet.2017.06.010
Abstract: Abstract A number of new diazabenzo[e]acephenanthrylene-1,2-dicarboxylate derivatives have been prepared regiospecifically in moderate to good yields from the triphenylphosphine-mediated cyclocondensation reaction of dialkyl acetylenedicarboxylates with 1-(4-aryl)-2-(11H-indeno[1,2-b]quinoxalin-11-ylidene)ethanones, derived from reaction of ninhydrin, o-phenylenediamine, and 1-aryl-2-(triphenylphosphoranylidene)ethanones. read more here.
Keywords: acephenanthrylene; regioselective construction; construction diazabenzo; metal free ... See more keywords