Given 1,2,5-trimethylcyclohept-1-ene as the starting material, provide a step-by-step process to synthesize the compound below. If a step forms a chiral center, assume the reaction produces a racemic mixture.

Identify the steps showing the synthesis of the cyclopropane derivative from the bromoalkane below.

Propose a synthesis plan for the following compound. You can use any alkenes or cycloalkenes that contain no more than six carbon atoms as the starting material.

Using only molecules containing three carbons or fewer, synthesize the molecule below.

Using the alkyne below, synthesize the alkyne on the right in 3 steps.