Answer to Question #87060 in Biochemistry for Arun Rawat

Question

a) Draw sawhorse projections for the most stable and the least stable conformations of
butane.

Answer 1

The most stable conformation of butane is obtained when two terminal methyl groups are far from each other (antiperiplanar conformation) whereas the least stable conformation of butane observed when the methyl groups form a dihedral angle of 0° (synperiplanar conformation).