NATTTRAL WAXES 



341 



Cholestaiioiie 



Dihydrocholesterol 

 (OH/H: trans) 



»2 (Pt) 



Neutral Solution 



I NoOR 

 180'C. 



HO'' 



Epidihvdrocholesterol 

 (OH/H: CIS) 



Epimerization of cholestanone 



0^\ 



Coprostanone 



(A/B: cis) 



Coprosterol 

 (OH/H: cis) 



H2(Pt) 



Neutral Solution 



ii NoOR 

 180'C. 



Epicoprosterol 

 (OH/H: trans) 



Epimerization of coprostanone 



