Quiz Write chemical equations for the following reactions :

Write chemical equations for the following reactions :

CBSE Chemistry class 12 question and answer | Write chemical equations for the following reactions :

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February 27, 2024

Write chemical equations for the following reactions :

(a) Hydroboration – oxidation reaction
(b) Williamson Synthesis
(c) Friedel-Crafts Alkylation of Anisole
(d) Reimer-Tiemann Reaction

Ans.

(a) Hydroboration-oxidation reaction: $RCH=CH_{2} + BH_{3} \cdot THF \to RCH_{2} CH_{2} OH$ $RCH_{2} CH_{2} OH + H_{2} O_{2}, NaOH \to RCH_{2} CHOH + H_{2} O$

(b) Williamson synthesis: $R-X + Na OR \to R-OR + NaX$

(c) Friedel-Crafts alkylation of anisole: $C_{6} H_{5} OCH_{3} + R-X + AlCl_{3} \to C_{6} H_{5} OR + HCl$

(d) Reimer-Tiemann reaction: $PhOH + CHCl_{3} + NaOH \to PhOH-CHO + HCl + NaCl$