Consider the following reaction. From these reactions which reaction will give carboxylic acid as a major product ? (A) R–CN condition mild O H / H )i( 2 (B) R–MgX O H ) ii ( CO )i( 2 (C) R–CN O H ) i

Question

Consider the following reaction. From these reactions which reaction will give carboxylic acid as a major product ? (A) R–CN condition mild O H / H )i( 2 (B) R–MgX O H ) ii ( CO )i( 2 (C) R–CN O H ) ii ( HCl / SnCl )i( 2 (D) R–CH2–OH PCC (E) water Br ) ii ( BaSO Pd | H )i( 4 Choose the correct answer from the options given below :

(A) A, B and E only
(B) A and D only
(C) B and E only
(D) B, C and E only

Prashant Kotian · Accepted Answer

Correct answer: C. (A) R–CN ) temp High & HCl . conc ( condition drastic in O H3           R–COOH + NH4+ (B) R–MgX      H . CO . 2 R–COOH (C) R–CN HCl SnCl 2     R–CH=NH      O H3 R–CH=O (D) R–CH2OH   PCC R–CH=O (E) Ph–C–Cl O        2 BaSO , Pd / H Ph–CH=O      O H / Br 2 Ph–COOH

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