Question

For such kind of diazo-coupling reaction the suitable substituents $X$ and $Y$ are respectively :

• A.
• B. $- NO _{2}$ and $- \overset{\underset{||}{O}}{C} - H$
• C. $- NH _{2}$ and $- NHCH _{3}$
• D. $- NH _{2}$ and $- OCH _{3}$

Answer 1

Answer: (A)

For coupling $PhN _{2}^{\oplus}$ must have EWG and coupling reagent must have EDG.
thus $X =- OCH _{3}$ and $Y =- NO _{2}$