Question

Item 9

Part A

*please only answer if you have a strong orgo background

Draw the lowest energy conformation (newman projection) of 3-ethyl-2,4,4-trimethylheptane, depicting the C3−C4 bond on a sawhorse.

Choose a prospective projection from the Templates toolbar (bottom). The C−C bond of the structure that appears should become the C(3)−C(4) bond in heptane.

Replace the appropriate hydrogens with the appropriate −CH3 or other groups.

Important: Never delete the hydrogen atoms or bonds directly attached to the template, and do not move them by dragging or dropping them. That will break the projections structures. Only replace them!

Answer 1