What is the correct order of stabilities of the following isomeric structures, starting with one with the lowest energy? I understand that the further the methyl groups are from one another the lower the energy but in A, B, and C the methyl groups are not near each other indicating no steric strain which would increase the energy.. but I am not sure how to further approach the problem.
Homework Answers
correct answer is e. B < C < A
in each case one methyl group is in axial right?
in case of B methyl group have interaction with lone pair
si here diaxial interaction between methyl and lone pair so there is 2 CH3-lone pair interactions
where in option C methyl have one CH3-Lone pair interaction and another lone pair hydrogen interaction
in compound A there is two CH3-H interactions
CH3-lone pair interaction is less energy than CH3-lone pair
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