Question

The stable conformers(s) of cis-cyclohexane-1,3-diol is/are:

• A. 1-axial-3-axial form
• B. 1-axial-3-equatorial form
• C. 1-equatorial-3-axial form
• D. 1-equatorial-3-equatorial form

Answer 1

The correct option is A 1-axial-3-axial form

1,3 cis-isomer has either both at axial or both at equatorial position. In cis-cyclohexane-1,3-diol, both $OH$ at axial position will be most stable due to strong H-bonding stabilization that overcomes di-axial repulsions. Whereas H-bonding is not present in case of both equatorial $OH$.

Therefore option A is correct