Chapter 8 - Reactions of Alkenes - Problems - Page 343: Problem 8-8 b

Look at the part (b) in the picture. After treating the orgomercurial 1-methylcyclohexanol with $NaBH_4$, 1-methylcyclohexanol forms.

Demercuration with $NaBH_4$ replaces the mercuric fragment with hydrogen to give the alcohol. Look at the part (b) in the picture. After treating the orgomercurial 1-methylcyclohexanol with $NaBH_4$, 1-methylcyclohexanol forms.