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Crystal and molecular structures of N- Phenylmaleimide and N-Phenyl-2, 3- dimethylmaleimide

N-phenylmaleimide and N-phenyl-2, 3- dimethylmaleimide have been synthesised and structurally characterized by X-ray diffraction. The crystal structure of the second compound proves that condensation of PhNH2 with 2, 3-dimetylmaleic anhydride gives, through a one step mechanism, N-phenyl-2, 3- dimethylmaleimide and not the corresponding isomaleimide.

X-ray structure analysis ; crystal structure ; N-phenylmaleimide ; N-phenyl-2 ; 3-dimethylmaleimide

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