A) Reimer-Tiemann reaction
B) Cannizaro reaction
C) Wurtz reaction
D) Friedel-Crafts acylation
Correct Answer: B
Solution :
[b] Reimer-Tiemann reaction, |
(Here, a new CC bond is formed.) |
Cannizaro reaction, |
\[\text{2HCHO}\xrightarrow[{}]{\text{Conc}\text{.}\,\text{NaOH}}\text{C}{{\text{H}}_{\text{3}}}\text{OH}\,\text{+}\,\text{HCOONa}\] |
(No new CC bond is formed in this reaction.) |
Wurtz reaction, |
\[2RX+dry\,Na\xrightarrow[{}]{Ether}R-R\] |
(One new CC bond is formed.) |
Friedel-Crafts acylation, |
(New CC bond is formed.) |
Thus, among the given reactions, only Cannizaro reaction does not involve the formation of a new CC bond. |
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