Citric Acid

 

Reaction 2: Dehydration of an alcohol

Two steps (Rx. 2 and 3) are required to isomerize the position of the -OH group on citric acid. This first step is a dehydration of an alcohol to make an alkene. The cis-aconitic acid remains bound to the enzyme aconitase in readiness for the next step.

This reaction is catalyzed by aconitase.

 cis-Aconitic Acid

Color Codes
C

H

N

O

P

S

Cl

F

 Click-hold mouse button to move structure.
Click "x" box to toggle between structures
.
 Move manually to match left window
  Spacefill / ball & stick   Optimal View - left window   Spacefill / ball & stick
Reaction Changes / ball & stick

 Remove -OH make a double bond
  Reaction Changes / ball & stick
      

 

   Wireframe / ball & stick   Identify as glucose / ball & stick   Wireframe / ball & stick  
    MEP / ball & stick     MEP / ball & stick
    MEP (transparent) / ball & stick     MEP (transparent) / ball & stick