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Question

Which of the following is crossed aldol product in the reaction?
CH3CHO+CH3CH2CHOOH−−25oC P
  1. 639354_2167762_92bf2d290d3742f5b3abfcec6130ab79.png
  2. 639354_2167763_86932b5929e24308b02253da0516f4c5.png
  3. 639354_2167764_d9873add15704806a60ce4168d7d5d14.png
  4. 639354_2167765_9ba966c63d604431ae075c5b7136910b.png

A
639354_2167762_92bf2d290d3742f5b3abfcec6130ab79.png
B
639354_2167764_d9873add15704806a60ce4168d7d5d14.png
C
639354_2167763_86932b5929e24308b02253da0516f4c5.png
D
639354_2167765_9ba966c63d604431ae075c5b7136910b.png
Solution
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Ethanal is more electrophilic than propanal. So, enolate of propanal will attack as nucleophile on ethanal.

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Similar Questions
Q1
Which of the following is crossed aldol product in the reaction?
CH3CHO+CH3CH2CHOOH−−25oC P
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Q2
The major cross aldol product of the following reaction is :
CH3CHO+CH3CH2CHO(i)NaOH−−−−(ii)
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Q3
How many aldol products would be produced by CH3CHO and CH3CH2CHO?
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Q4
Possible product of the following reaction is:

CH3CHO+CH3CH2CHO(i)NaOH−−−−(ii)Δ

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Q5
Which of the following are crossed aldol products in the given reaction ?

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