Cứu em aaaaaaaaaaaaa

\begin{array}{|c|c|c|}\hline \text{CTCT}&\text{Bậc}&\text{Tên gốc chức}&\text{Tên thay thế }&\text{Tên thường}\\\hline \text{$CH_3NH_2$}&\text{$1^o$}&\text{Methylamine}&\text{Methanamine}&\text{-}\\\hline\text{$(CH_3)_2NH$}&\text{$2^o$}&\text{Dimethylamine}&\text{N-methylmethanamine}&\text{-}\\\hline\text{$(CH_3)_3N$}&\text{$3^o$}&\text{Trimethylamine}&\text{N,N-dimethylmethanamine}&\text{-}\\\hline \text{$C_2H_5NH_2$}&\text{$1^o$}&\text{Ethylamine}&\text{Etanamine}&\text{-}\\\hline \text{$CH_3CH_2CH_2NH_2$}&\text{$1^o$}&\text{Propylamine}&\text{1-propanamine}&\text{-}\\\hline \text{$CH_3CH(NH_2)CH_3$}&\text{$1^o$}&\text{Isopropylamine}&\text{2-propanamine}&\text{-}\\\hline\text{$C_6H_5NH_2$}&\text{$1^o$}&\text{Phenylamine}&\text{benzenamine}&\text{Aniline}\\\hline\text{$C_6H_5NHCH_3$}&\text{$2^o$}&\text{$Methyl \,\, phenyl \,\, amine$}&\text{N-methylbenzenamine}&\text{N-methylaniline }\\\hline\end{array}

$-------------$

`@`$C_2H_7N$

`+` Bậc $1^o:$

$CH_3CH_2NH_2$

`+` Bậc $2^o:$

$CH_3NHCH_3$

`@`$C_3H_9N$

`+` Bậc $1^o:$

$CH_3CH_2CH_2NH_2$

$CH_3CH(CH_3)CH_2$

`+` Bậc $2^o:$

$CH_3NHCH_2CH_3$

`+` Bậc $3^o:$

$(CH_3)_3N$