In the Directive Effects in the Bromination of Vanillin, the following reaction was performed: сно сно Br2 CH,CH,CO,H OMe Br OMe OH OH vanillin 5-bromovanillin Which of the following are correct resonance structures of the intermediate cation in this reaction? Mark all that are correct. CHO CHO CHO H. H. H. Br O Br OMe Br OMe OMe OH OH CHO CHO Br H- CHO H. Br OMe Br OMe OMe OH OH OH

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