Question

The stable conformer of cis-cyclohexane-1,3-diol is:

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

Answer 1

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

Cis-cyclohexane-1,3-diol has two forms where both hydroxy groups are either at axial position or at equitorial position.
The axial form is more stable due to chelation (intramolecular H-bonding).