Question

The following conversion is/are possible by
`Ph-CH_(2)-CH=O to overset("(Phenyl alanine)")(Ph-CH_(3)-underset(NH_(3))underset(|)(C)H-COOH)`
A. `overset(KCN//H_(2)O)to overset(NH_(3),Delta)to overset(H_(3)O^(o+),Delta)to`
B. `overset(KCN//NH_(4)Cl)to overset(H_(3)O^(o+),Delta)to`
C. `overset(HCN//NaOH)to overset(SOCl_(2))to overset(NH_(3))to overset(H_(3)O^(o+),Delta)to`
D. `overset(Br_(2)//CH_(3)COOH)to overset(NH_(3))to overset(CrO_(3)//H^(o+))to`

Answer 1

Correct Answer - A::B::C
`(A) Ph-CH_(2)-CH_(2)=O overset(KCN//H_2O)to Ph-CH_(3)-underset(OH)underset(|)(C)H-CN overset(ddot(N)H_3)to Ph-CH_(2)-underset(NH_(2))underset(|)(C)H-CN overset(H_(3)overset(o+)(O))to Ph-CH_(3)-underset(NH_(3))underset(|)(C)H-COOH`
(B) `Ph-CH_(3)-CH=O overset(KCN//NH_(4)Cl)toPh-CH_2-underset(OH)underset(|)(C)H-CN overset(ddot(N)H_(3))to Ph-CH_(2)-underset(NH_(2))underset(|)(C)H-CN overset(H_(3)overset(o+)(O))to Ph-CH_(2)-underset(NH_(2))underset(|)(C)H-COOH`
(C) `Ph-CH_(3)-CH=O overset(HCN//NaOH)toPh-CH_(2)-underset(OH)underset(|)(C)H-CN overset(SOCl_(2))to Ph-CH_2-underset(Cl)underset(|)(C)H-CN overset((1)NH_(3))underset((2)overset(o+)(H)_(2)O)to Ph-CH_(2)-underset(NH_(2))underset(|)(C)H-COOH`