Problems and exercisesPreparation
1. From alkene to alkyne
Plan the following transformation:

2. Alkylation
How would you prepare 1-phenyl-2-butyne, C6H5CH2C≡CCH3, from propyne?
Plan the following transformation:

How would you prepare 1-phenyl-2-butyne, C6H5CH2C≡CCH3, from propyne?