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A) Why does acetophenone react with p-anisaldehyde rather than self-condensing? B) When butanal and propanal are...

A) Why does acetophenone react with p-anisaldehyde rather than self-condensing?

B) When butanal and propanal are reacted under aldol conditions, 4 different products are made, draw them.

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Answer #1

A) Acetophenone react with p-anisaldehyde in basic conditions. Because in basic medium acetophenone can give a H+ and give a resonance stabilised anion (enolate ion). In p-anisaldehyde the C=O bond is slightly polar with C on positive. Thus the enolate ion (anion) being a nucleophile attacks the Carbonyl group of the p-anisaldehyde, ultimately forming a stable isomer.

B)Please refer to the attached image:

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