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  • Câu hỏi:

    Cho dãy chuyển hóa sau:
    \(p-Br-C_6H_4-CH_2Br\xrightarrow{dd\ NaOH,\ t^0}A_1\xrightarrow{NaOH\ (dac,\ t^0,\ p)}A_2\) \(\xrightarrow{Na}A_4\xrightarrow{HCOOH,\ H_2SO_4}A_5\)
    A5 có công thức là:

    • A. HCOO-C6H4-CH2COOH
    • B. HO-C6H4-CH2OCOH
    • C. HCOO-C6H4-CH2OH
    • D. HO-C6H4-CH2COOH

    Đáp án đúng: B

    A1: Br-C6H4-CH2OH
    A2: NaO-C6H4-CH2OH
    A4: NaO-C6H4-CH2ONa
    A5: HO-C6H4-CH2OCOH 

    Hãy trả lời câu hỏi trước khi xem đáp án và lời giải
    AMBIENT-ADSENSE/
    QUẢNG CÁO
     
 
 

 

 
 

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