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Show how each of the four products shown at the beginning of this section is formed in the crossed aldol addition between ethanol and propanal. |
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Answer» Solution :In the BASIC aqueous solution, four organic entities will initially be PRESENT: molecules of ethanal, molecules of PRO panal, enolate ANIONS derived from ethanal, and enolate anions derived from propanal. 3-Hydroxy-2-methylbutanal results when the enolate of propanal REACTS with ethanal.  and finally, 3-hydroxypentanal results when the enolate of ethanal reacts with propanal. 
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