Aminobromination of beta-Nitrostyrene Derivatives with N,N-Dibromourethane as the Aminobrominating Reagent

[摘要]：A concise and efficient aminobromination reaction for beta-nitrostyrene derivatives by treatment with N,N-dibromourethane was developed. For the beta-nitrostyrene derivatives, the aminobromination successfully proceeded at room temperature in CH(3)CN without catalysis or protection by an inert gas and gave products in excellent yields (80-97%). For the beta-methyl analogs, the reaction proceeded smoothly with anhydrous K(2)CO(3) as a catalyst under the same conditions to provide the aminobrominated products in good yields (53-78%). A possible pathway for this electrophilic addition reaction is proposed.

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