• 2022-06-03
    下列羰基化合物按其亲核加成的活性由大到小排序的是( )
    A: CH3COCH2CH3 , CH3CHO , CF3CHO, CH3COCH=CH2
    B: CH3CHO , CF3CHO,CH3COCH2CH3, CH3COCH=CH2
    C: CF3CHO, CH3CHO ,CH3COCH=CH2,CH3COCH2CH3
    D: CF3CHO, CH3COCH=CH2 ,CH3CHO ,CH3COCH2CH3