Intermediates formed during reaction of || ORCNH2 with Br2 and KOH are

Question

Intermediates formed during reaction of || ORCNH2 with Br2 and KOH are (A) RCONHBr and RNCO (B) RNHCOBr and RNCO (C) RNHBr anRCONHBr (D) RCONBr2

Tardigrade Admin · Accepted Answer

The reaction, RCONH2 + Br2 + KOH longrightarrow RNH2 is known as Hofmann bromamide reaction. The mechanism of this reaction is given as: (i) RCONH2 + Br2 longrightarrow RCONHBr + HBr (ii) RCONHBr xrightarrow OH- R - CO ddotNBr + H2O

Q. Intermediates formed during reaction of $_{∣ ∣_{_{O}}}^{RCN H_{2}}$ with $B r_{2}$ and KOH are

RCONHBr and RNCO

RNHCOBr and RNCO

RNHBr anRCONHBr

$RCONB r_{2}$

The reaction, $RCON H_{2} + B r_{2} + K O H ⟶ RN H_{2}$ is known as Hofmann bromamide reaction. The mechanism of this reaction is given as : (i) $RCON H_{2} + B r_{2} ⟶ RCON H B r + H B r$ (ii) $RCON H B r O H^{-} R - CO \ddot{N} B r + H_{2} O$

Q. Intermediates formed during reaction of ∣∣O​​RCNH2​​ with Br2​ and KOH are