Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which of the following undergoes aldol condensation? (1) Acetaldehyde (2) Propionaldehyde (3) Trideuteroacetaldehyde (4) BenzaldehydeA) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: A
Solution :
Carbonyl compounds having atleast one\[\alpha -H\]atom are able to undergo aldol condensation. The structures of the given compounds are as 1. \[\underset{\begin{smallmatrix} (3\text{ }\alpha H\text{ }-atoms) \\ \,\,acetaldehyde \end{smallmatrix}}{\overset{\alpha }{\mathop{C{{H}_{3}}CHO}}}\,\] 2. \[\underset{\begin{smallmatrix} (2\text{ }\alpha H\text{ }-atoms) \\ propionaldehyde \end{smallmatrix}}{\overset{\alpha }{\mathop{C{{H}_{3}}C{{H}_{2}}CHO}}}\,\] 3. \[\underset{\begin{smallmatrix} \,\,\,\,\,\,\,\,\,(3\text{ }\alpha D\text{ }-atoms) \\ trideuteroacetaldehyde \\ (D\text{ }is\text{ }an\text{ }isotope\text{ }of\text{ }H) \end{smallmatrix}}{\overset{\alpha }{\mathop{C{{D}_{3}}CHO}}}\,\] 4. Thus, acetaldehyde, propionaldehyde and trideutero acetaldehyde undergo aldol condensation and give respective aldol.You need to login to perform this action.
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