fig9
Figure 9. ortho-chlorophenyl thiourea/DMAP cooperative catalysis for the [4 + 1] cyclization reaction of nitroolefins and stable sulfonium ylides. This figure is used with permission from the American Chemical Society[54].
Figure 9. ortho-chlorophenyl thiourea/DMAP cooperative catalysis for the [4 + 1] cyclization reaction of nitroolefins and stable sulfonium ylides. This figure is used with permission from the American Chemical Society[54].
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