The rate of acetylcobalt tetracarbonyl methanolysis between 40 and 60
degrees C is first-order with respect to the acetylcobalt tetracarbony
l concentration and independent of the carbon monoxide concentration.
The reaction is susceptible to both acid and base catalysis. Nucleophi
lic substitution of Co(CO)(4) on the acyl carbonyl-carbon by methanol
is the most probable pathway.