MCQ
Which sequence represents the best synthesis of $4-$ isopropylbenzonitrile ?
- A$1.$ Benzene $+ (CH_3)_2CHCl,AlCl_3;$
$2.\, Br_2, FeBr_3;$
$3.\, KCN$
- B$1.$ Benzene $+ (CH_3)_2CHCl,AlCl_3;$
$2.\, HNO_3 , H_2SO_4;$
$3.\, Fe, HCl,;$
$4.\, NaOH $
$5.\, NaNO_2, HCl, H_2O$
- ✓$1.$ Benzene $+(CH_3)_2CHCl, AlCl_3;$
$2.\, HNO_3 , H_2SO_4;$
$3.\, Fe, HCl;$
$4.\, NaNO_2 /HCl $
$5.\, KCN$
- D$1.$ Benzene $+ HNO_3 , H_2SO_4;$
$2.\, (CH_3)_2CHCl, AlCl_3;$
$3.\, Fe, HCl;$
$4.\, NaNO_2, HCl, H_2O;$
$5.\, CuCN$
