Propose an efficient synthesis for the following transformations using ONLY aldol, micheal and other reactions related to enol/enolate.

See attached file

Show how to prepare   a,b-unsaturated aldehyde by an aldol reaction followed by dehydration of the aldol product.

Draw the product formed from acetaldehyde using (OH, H2O). (Aldol reaction & dehydration

Draw the structures A, B and C for the reaction sequence below.

Show how to synthesize the following compound from an alkyl halide and a ketone oraldehyde. Hint: use a Wittig reaction.

Provide a synthesis for the following transformation where you utilize both reagents somewhere in the synthesis.

Can you assist with the complete stepwise reaction mechanism for the following Aldol condensation reaction. curved arrows to show direction of electron flow.

Please do a detailed mechanism for the aldol reaction. Must show all the intermediates from the starting products below and water being available. NaOH Br

) Cinnamaldehyde is used in artificial cinnamon flavoring. Show how cinnamaldehydeis synthesized by a crossed aldol condensation followed by dehydration.