each of the following reactions with alkenes, the starting reagent(s) is/are missing. Draw all the structures that will produce the desired products in a high yield.

4. Complete the following synthesis. 2 CH₂Br

What alkyl halide forms the following alkene as the only product in an elimination reaction? o Click the "draw structure" button to launch the drawing utility. draw structure. www

These are synthesis questions. You need to show how the starting material can be converted into the product(s) shown. You may use any reactions we have learned. Show all the reagents you need. Show each molecule synthesized along the way and be sure to pay attention to the regiochemistry and stereochemistry preferences for each reaction. If a racemic molecule is made along the way, you need to draw both enantiomers and label the mixture as "racemic".