Carboxylic Acids and their Derivatives - Result Question 14
####14. How will you bring about the following conversion? “Ethanal to 2-hydroxy-3-butenoic acid.,”
$(1990,2 M)$
Topic 2 Acid Derivatives
Objective Questions I
(Only one correct option)
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Answer:
Correct Answer: 14. (b)
Solution:
- $CH _3 CHO+HCHO \xrightarrow{NaOH} H-\underset{H}{\stackrel{O}{\mid}} \stackrel{CH}{\text { Aldol }}-CH _2-CHO \xrightarrow{\Delta}$
$CH _2=CH-\stackrel{O}{CH}-CN \xrightarrow[H _2 O]{\stackrel{H^{+}}{\longrightarrow}} CH _2=CH-\stackrel{\stackrel{O}{C} H}{H}-COOH$
