Question

What is the name of the following reaction?
 $HCHO+HCHO\underset{\mathrm{\Delta }}{\overset{NaOH}{\to }}C{H}_{3}OH+HCOONa$
(A) Clemmensen reaction
(B) Cannizzaro reaction
(C) None of the options
(D) Hell-Volhard reaction

Answer 1

Hint: This response is named after its pioneer Stanislao Cannizzaro. You should realize that the items framed from this response are essential liquor and a carboxylic corrosive. This reaction is a redox reaction.

Complete step by step answer
The Cannizzaro reaction, named after its pioneer Stanislao Cannizzaro, is a compound response that includes the base-incited disproportionation of two atoms of a non-enolizable aldehyde to give an essential liquor and a carboxylic acid. Cannizzaro initially developed this change in 1853, when he got benzyl alcohol and potassium benzoate from the treatment of benzaldehyde with potash (potassium carbonate).All the more regularly, the response would be directed with sodium hydroxide or potassium hydroxide, giving the sodium or potassium carboxylate salt of the carboxylic-corrosive product. Due to the firmly antacid response conditions, aldehydes that have alpha hydrogen atom(s) rather go through deprotonation there, prompting enolates and conceivable aldol responses.
Under ideal conditions the response creates just half of the liquor and the carboxylic corrosive (it takes two aldehydes to deliver one corrosive and one alcohol). To stay away from the low yields, it is more normal to lead the crossed Cannizzaro response, in which a conciliatory aldehyde is utilized in blend with a more significant substance. In this variety, the reductant is formaldehyde, which is oxidized to sodium formate and the other aldehyde compound is diminished to the liquor.
A dissolvable free reaction has been represented including beating liquid 2-chlorobenzaldehyde with potassium hydroxide in a mortar and pestle.
The following reaction is called Cannizzaro Reaction.
 $HCHO+HCHO\underset{\mathrm{\Delta }}{\overset{NaOH}{\to }}C{H}_{3}OH+HCOONa$ .

Hence, option B is correct.

Note
The varieties of the response improve the yield of the ideal item. The Cannizzaro response can be utilized to impact a disproportionation of two atoms of a non-enolizable aldehyde to give an essential liquor and a carboxylic corrosive.