Question: Show how the following compounds could be prepared, using ethyne as one of the starting materials. Explain why ethyne should be alkylated before, rather than

Show how the following compounds could be prepared, using ethyne as one of the starting materials. Explain why ethyne should be alkylated before, rather than after, nucleophilic addition.
a. 1-pentyn-3-ol
b. 1-phenyl-2-butyn-1-ol
c. 2-methyl-3-hexyn-2-ol

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