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Old 10-14-2007 Mã bài: 16309   #20
bluemonster
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sẵn đang nói về nhóm carbonyl em hỏi cơ chế này luôn
C6H12N2O2----Br2,NaOH--->C4H12N2


H2N-CO-CH(CH3)-CH(CH3)-CO-NH2
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