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Can someone provide the detailed mechanism of the reaction of 2-acetylpyridine with 4-nitrobenzaldehyde with Na2CO3 and...

Can someone provide the detailed mechanism of the reaction of 2-acetylpyridine with 4-nitrobenzaldehyde with Na2CO3 and H+ under the conditions of aldol reaction and an aldol condensation.

1. Aldol reaction mechanism:

2. Aldol condensation mechanism:

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