Consider the following reactions giving major product. Identify the correct reaction. (A) NH CO HNO3 — JEE Mains Chemistry Past Papers Chemistry Question
Question
Consider the following reactions giving major product. Identify the correct reaction. (A) NH CO HNO3 : H2SO4 (1 : 2) NHCO NO2 (B) (i) Heat NH2 N K + O O (ii) Hydrolysis X (C) CH2NH2 CHCl3/KOH CH2NH2 CH2N C ` (i) Sn/HCl/ (ii) pH adjusted (D) H3CCH2–C–NH2+Br2+4KOH(alc) O H3CCH2NH2 + 2KBr + K2CO3 + 2H2O
Answer: D
💡 Solution & Explanation
(1) —NH—C— HNO3 O H2SO4 NH—C— O NO2 Incorrect product (2) N K + O O X No reaction # Aromatic halide does not give gabriel phthalimide reaction (3) CH2NH2 CHCl3/KOH CH2–NH–CH3 CH2NC Sn/HCl (I) (II) pH Adjusted (4) Hoffmann bromamide degradation CH3–CH2–C–NH2 O Br 4KOH CH3–CH2–NH2 + 2KBr + K2CO3 + 2H2O
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