Muscalure is the sex pheromone of the common housefly. On the basis of the following information (in the attached .jpg), give the structure of Muscalure and the intermediates A and B.
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Please see the attached file.
In the first reaction, the number of Carbon for product A does not change (15). The reaction is simply the substitution of Li with H in the triple bond.
n-C13H27CCH + n-BuLi  A (C15H27Li)
So we can draw A as C13H27CCLi
Proceed to the ...
The solution provides detailed explanations, including reactions and chemical structures.